代码之家  ›  专栏  ›  技术社区  ›  user348246

将菜单滚动条向右移动或仅在菜单中滚动

css3 css html jquery javascript
  •  -1
  • user348246  · 技术社区  · 5 年前 

    $(function() {
  "use strict";
  $(".navbar-toggler").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    let menuposition = $("#toggler").offset().left + $("#toggler").width() + 55;
    let windowsize = $(window).width();
    let offcanvas = windowsize - menuposition;
    let fromtop = $("#navigation").height() + 16;
    $(".offcanvas-collapse").css("right", offcanvas);
    $(".offcanvas-collapse").css("top", fromtop);
    $("body").toggleClass("off-canvas-active");
    if (!$(".navbar-brand").hasClass("makeappear")) {
      $(".navbar-brand").addClass("makeappear");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });

  $(".off-canvas-overlay").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    $("body").toggleClass("off-canvas-active");
    if ($("body").hasClass("off-canvas-active")) {
      $("body").addClass("nav-open");
    } else {
      $("body").removeClass("nav-open");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });


  
});
    .navbar-nav li .nav-link {
  padding-right: .5rem;
  padding-left: .5rem;
}
#navbarCollapse li.active {
  background-color: #BA122B;
}
#navbarCollapse li.active a {
  color: #FFF;
  background-color: #BA122B;
}

#navbarCollapse .menu {
  padding-top: 30px;
}
#navbarCollapse .dropdown-menu {
  padding-left: 20px;
}
#navbarCollapse li a {
  border-bottom: 1px solid #E3E3E3;
  color: #BA122B;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-property: color, background-color;
  transition-property: color, background-color;
  -webkit-transform: perspective(1px) translateZ(0);
  transform: perspective(1px) translateZ(0);
}
#navbarCollapse li a:hover {
  color: #FFF;
  background-color: #BA122B;
}
#navbarCollapse parent:after {

}
.body {
  background-color: #f6f6f6;
  padding-top: 2rem;
}

.off-canvas-active .off-canvas-overlay {
  opacity: 1;
  visibility: visible;
}
.off-canvas-overlay {
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .75);
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: .3s ease-in-out;
 
}
.offcanvas-collapse.open {

  display: block;
  -webkit-animation: slide-right .3s ease-out;
    -moz-animation: slide-right .3s ease-out;
}
@-webkit-keyframes slide-right {
      0% { opacity: 0; -webkit-transform: translateX(-100%); }
    100% { opacity: 1; -webkit-transform: translateX(0); }
}
@-moz-keyframes slide-right {
      0% { opacity: 0; -moz-transform: translateX(-100%); }
    100% { opacity: 1; -moz-transform: translateX(0); }
}
.offcanvas-collapse {
  position: fixed;
  top: 56px;
  bottom: 0;
  right: 0;
  width: 270px;
  transition-timing-function: ease-in-out;
  transition-duration: .3s;
  transition-property: width;
  display: none;
  overflow-y:auto;
}
.navbar-expand-md .navbar-toggler {
  display: block!important;
}

.navbar-toggler {
  border: none;
  height: 40px;
}
.navbar-toggler:active, .navbar-toggler:focus {
  outline: 0;
}
.navbar-toggler .icon-bar {
  display: block;
  width: 30px;
  height: 2px;
  border-radius: 1px;
  transition: .3s ease-in-out;
  background-color: #BA122B;
}
.navbar-dark .navbar-toggler .icon-bar {
  background: #ffffff;
}
.navbar-toggler .icon-bar:nth-of-type(1) {
  transform: rotate(45deg) translate(2px, 2px);
}
.navbar-toggler .icon-bar:nth-of-type(2) {
  opacity: 0;
}
.navbar-toggler .icon-bar:nth-of-type(3) {
  transform: rotate(-45deg) translate(1px, -1px);
}
.navbar-toggler.collapsed .icon-bar {
  margin: 5px auto;
  transform: none;
  opacity: 1;
}
.navbar-nav .dropdown-menu {
  padding: 0;
  border: none;
  margin: 0;
  border-radius: 0;
}
.dropdown-toggle::after {
  right: 30px;
  position: absolute;
  top: 50%;
}
.nav-open {
    overflow: hidden;
}
.no-scroll {
  position: fixed;
  width: 100%;
  height: 100%;
  overflow-y: scroll;
}
    <!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</head>
<body class="site">
<nav id="navigation" class="navbar fixed-top navbar-white bg-white border-bottom shadow-sm">
      <div class="container">
        <a class="navbar-brand" href="#">
        </a>
        <button id="toggler" class="navbar-toggler collapsed" type="button" data-toggle="offcanvas" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
        <div class="offcanvas-collapse border-left shadow-sm bg-white" id="navbarCollapse">
          <ul class="nav menu navbar-nav ml-auto text-uppercase mod-list">
<li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li></ul>
        </div>
      </div>
    </nav>
<div class="off-canvas-overlay"></div>
</body>
</html>

    在捕获时,我禁用了body/html上的滚动,并在菜单上启用了滚动,它可以将滚动条向右移动吗?

    如果您有任何其他想法,请分享:)

    capture

    0 回复  |  直到 5 年前
        1
  •  1
  •   Chase Ingebritson    5 年前

    所以看起来你的例子就在那里了,它只是在CSS中有一个与滚动相关的错误需要调整。

    你的JS正在添加 no-scroll html 元素正确。然而 .no-scroll overflow-y 属性设置为 scroll 而不是 hidden . 这个 隐藏的

    如果我误解了你的问题或者你对我的调整有任何疑问,请告诉我。 

    $(function() {
  "use strict";
  $(".navbar-toggler").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    let menuposition = $("#toggler").offset().left + $("#toggler").width() + 55;
    let windowsize = $(window).width();
    let offcanvas = windowsize - menuposition;
    let fromtop = $("#navigation").height() + 16;
    $(".offcanvas-collapse").css("right", offcanvas);
    $(".offcanvas-collapse").css("top", fromtop);
    $("body").toggleClass("off-canvas-active");
    if (!$(".navbar-brand").hasClass("makeappear")) {
      $(".navbar-brand").addClass("makeappear");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });

  $(".off-canvas-overlay").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    $("body").toggleClass("off-canvas-active");
    if ($("body").hasClass("off-canvas-active")) {
      $("body").addClass("nav-open");
    } else {
      $("body").removeClass("nav-open");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });



});
    .navbar-nav li .nav-link {
  padding-right: .5rem;
  padding-left: .5rem;
}

#navbarCollapse li.active {
  background-color: #BA122B;
}

#navbarCollapse li.active a {
  color: #FFF;
  background-color: #BA122B;
}

#navbarCollapse .menu {
  padding-top: 30px;
}

#navbarCollapse .dropdown-menu {
  padding-left: 20px;
}

#navbarCollapse li a {
  border-bottom: 1px solid #E3E3E3;
  color: #BA122B;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-property: color, background-color;
  transition-property: color, background-color;
  -webkit-transform: perspective(1px) translateZ(0);
  transform: perspective(1px) translateZ(0);
}

#navbarCollapse li a:hover {
  color: #FFF;
  background-color: #BA122B;
}

#navbarCollapse parent:after {}

.body {
  background-color: #f6f6f6;
  padding-top: 2rem;
}

.off-canvas-active .off-canvas-overlay {
  opacity: 1;
  visibility: visible;
}

.off-canvas-overlay {
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .75);
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: .3s ease-in-out;
}

.offcanvas-collapse.open {
  display: block;
  -webkit-animation: slide-right .3s ease-out;
  -moz-animation: slide-right .3s ease-out;
}

@-webkit-keyframes slide-right {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
  }
}

@-moz-keyframes slide-right {
  0% {
    opacity: 0;
    -moz-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateX(0);
  }
}

.offcanvas-collapse {
  position: fixed;
  top: 56px;
  bottom: 0;
  right: 0;
  width: 270px;
  transition-timing-function: ease-in-out;
  transition-duration: .3s;
  transition-property: width;
  display: none;
  overflow-y: auto;
}

.navbar-expand-md .navbar-toggler {
  display: block!important;
}

.navbar-toggler {
  border: none;
  height: 40px;
}

.navbar-toggler:active,
.navbar-toggler:focus {
  outline: 0;
}

.navbar-toggler .icon-bar {
  display: block;
  width: 30px;
  height: 2px;
  border-radius: 1px;
  transition: .3s ease-in-out;
  background-color: #BA122B;
}

.navbar-dark .navbar-toggler .icon-bar {
  background: #ffffff;
}

.navbar-toggler .icon-bar:nth-of-type(1) {
  transform: rotate(45deg) translate(2px, 2px);
}

.navbar-toggler .icon-bar:nth-of-type(2) {
  opacity: 0;
}

.navbar-toggler .icon-bar:nth-of-type(3) {
  transform: rotate(-45deg) translate(1px, -1px);
}

.navbar-toggler.collapsed .icon-bar {
  margin: 5px auto;
  transform: none;
  opacity: 1;
}

.navbar-nav .dropdown-menu {
  padding: 0;
  border: none;
  margin: 0;
  border-radius: 0;
}

.dropdown-toggle::after {
  right: 30px;
  position: absolute;
  top: 50%;
}

.nav-open {
  overflow: hidden;
}

.no-scroll {
  position: fixed;
  width: 100%;
  height: 100%;
  overflow-y: hidden; /* Switched `scroll` to `hidden` */
}
    <!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</head>
<body class="site">
<nav id="navigation" class="navbar fixed-top navbar-white bg-white border-bottom shadow-sm">
      <div class="container">
        <a class="navbar-brand" href="#">
        </a>
        <button id="toggler" class="navbar-toggler collapsed" type="button" data-toggle="offcanvas" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
        <div class="offcanvas-collapse border-left shadow-sm bg-white" id="navbarCollapse">
          <ul class="nav menu navbar-nav ml-auto text-uppercase mod-list">
<li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li><li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li><li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-110"><a href="#" class="nav-link">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown"><a href="/demo/aasssssssssssssssssssssss-2" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "="">testing</a><ul class="nav-child unstyled small dropdown-menu"><li class="item-111"><a href="#" class="nav-link">level 3</a></li></ul></li><li class="item-105"><a href="#" class="nav-link">testing</a></li><li class="item-106"><a href="#" class="nav-link">testing</a></li><li class="item-107"><a href="#" class="nav-link">testing</a></li><li class="item-108"><a href="#" class="nav-link">testing</a></li><li class="item-109"><a href="#" class="nav-link">testing</a></li></ul>
        </div>
      </div>
    </nav>
<div class="off-canvas-overlay"></div>
</body>
</html>

    编辑:

    根据你的评论,我已经调整了格式。Bootstrap处理其modal和滚动条的方式是将overlay设为全页并允许它垂直滚动,而不仅仅是模式滚动中的菜单。

    下面是调整后的片段: 

    $(function() {
  "use strict";
  $(".navbar-toggler").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    let menuposition = $("#toggler").offset().left + $("#toggler").width() + 55;
    let windowsize = $(window).width();
    let offcanvas = windowsize - menuposition;
    let fromtop = $("#navigation").height() + 16;
    // $(".offcanvas-collapse").css("right", offcanvas);
    $(".offcanvas-collapse").css("top", fromtop);
    $("body").toggleClass("off-canvas-active");
    if (!$(".navbar-brand").hasClass("makeappear")) {
      $(".navbar-brand").addClass("makeappear");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });

  $(".off-canvas-overlay").on("click", function() {
    $(".navbar-toggler").toggleClass("collapsed");
    $(".offcanvas-collapse").toggleClass("open");
    $("body").toggleClass("off-canvas-active");
    if ($("body").hasClass("off-canvas-active")) {
      $("body").addClass("nav-open");
    } else {
      $("body").removeClass("nav-open");
    }
    if ($("body").hasClass("off-canvas-active")) {
      $("html").addClass("no-scroll");
    } else {
      $("html").removeClass("no-scroll");
    }
  });



});
    .navbar-nav li .nav-link {
  padding-right: .5rem;
  padding-left: .5rem;
}

#navbarCollapse li.active {
  background-color: #BA122B;
}

#navbarCollapse li.active a {
  color: #FFF;
  background-color: #BA122B;
}

#navbarCollapse .menu {
  padding-top: 30px;
   width: 270px; /* Set the fixed width in the menu itself */
   margin-right: 50px; /* Add some spacing between the right side and the menu */
}

#navbarCollapse .dropdown-menu {
  padding-left: 20px;
}

#navbarCollapse li a {
  border-bottom: 1px solid #E3E3E3;
  color: #BA122B;
  -webkit-transition-duration: 0.3s;
  transition-duration: 0.3s;
  -webkit-transition-property: color, background-color;
  transition-property: color, background-color;
  -webkit-transform: perspective(1px) translateZ(0);
  transform: perspective(1px) translateZ(0);
}

#navbarCollapse li a:hover {
  color: #FFF;
  background-color: #BA122B;
}

#navbarCollapse parent:after {}

.body {
  background-color: #f6f6f6;
  padding-top: 2rem;
}

.off-canvas-active .off-canvas-overlay {
  opacity: 1;
  visibility: visible;
}

.off-canvas-overlay {
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%; /* Set the overlay to take up the entire page */
  background-color: rgba(0, 0, 0, .75);
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: .3s ease-in-out;
}

.offcanvas-collapse.open {
  display: block;
  -webkit-animation: slide-right .3s ease-out;
  -moz-animation: slide-right .3s ease-out;
}

@-webkit-keyframes slide-right {
  0% {
    opacity: 0;
    -webkit-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0);
  }
}

@-moz-keyframes slide-right {
  0% {
    opacity: 0;
    -moz-transform: translateX(-100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateX(0);
  }
}

.offcanvas-collapse {
  position: fixed;
  top: 56px;
  bottom: 0;
  right: 0;
  transition-timing-function: ease-in-out;
  transition-duration: .3s;
  transition-property: width;
  display: none;
  overflow-y: auto;
  width: 100%;
}

.navbar-expand-md .navbar-toggler {
  display: block!important;
}

.navbar-toggler {
  border: none;
  height: 40px;
}

.navbar-toggler:active,
.navbar-toggler:focus {
  outline: 0;
}

.navbar-toggler .icon-bar {
  display: block;
  width: 30px;
  height: 2px;
  border-radius: 1px;
  transition: .3s ease-in-out;
  background-color: #BA122B;
}

.navbar-dark .navbar-toggler .icon-bar {
  background: #ffffff;
}

.navbar-toggler .icon-bar:nth-of-type(1) {
  transform: rotate(45deg) translate(2px, 2px);
}

.navbar-toggler .icon-bar:nth-of-type(2) {
  opacity: 0;
}

.navbar-toggler .icon-bar:nth-of-type(3) {
  transform: rotate(-45deg) translate(1px, -1px);
}

.navbar-toggler.collapsed .icon-bar {
  margin: 5px auto;
  transform: none;
  opacity: 1;
}

.navbar-nav .dropdown-menu {
  padding: 0;
  border: none;
  margin: 0;
  border-radius: 0;
}

.dropdown-toggle::after {
  right: 30px;
  position: absolute;
  top: 50%;
}

.nav-open {
  overflow: hidden;
}

.no-scroll {
  position: fixed;
  width: 100%;
  height: 100%;
  overflow-y: hidden;
  /* Switched `scroll` to `hidden` */
}
    <!DOCTYPE html>
<html lang="en" dir="ltr">

<head>
  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</head>

<body class="site">
  <nav id="navigation" class="navbar fixed-top navbar-white bg-white border-bottom shadow-sm">
    <div class="container">
      <a class="navbar-brand" href="#">
      </a>
      <button id="toggler" class="navbar-toggler collapsed" type="button" data-toggle="offcanvas" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
      <div class="offcanvas-collapse border-left shadow-sm" id="navbarCollapse">
        <ul class="nav menu navbar-nav ml-auto text-uppercase mod-list bg-white">
          <li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li>
          <li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "=" ">testing</a><ul class="nav-child unstyled small dropdown-menu "><li class="item-110 "><a href="# " class="nav-link
              ">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown "><a href="/demo/aasssssssssssssssssssssss-2 " class="nav-link dropdown-toggle " data-toggle="dropdown " aria-expanded="false " "="">testing</a>
            <ul class="nav-child unstyled small dropdown-menu">
              <li class="item-111"><a href="#" class="nav-link">level 3</a></li>
            </ul>
          </li>
          <li class="item-105"><a href="#" class="nav-link">testing</a></li>
          <li class="item-106"><a href="#" class="nav-link">testing</a></li>
          <li class="item-107"><a href="#" class="nav-link">testing</a></li>
          <li class="item-108"><a href="#" class="nav-link">testing</a></li>
          <li class="item-109"><a href="#" class="nav-link">testing</a></li>
          <li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li>
          <li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "=" ">testing</a><ul class="nav-child unstyled small dropdown-menu "><li class="item-110 "><a href="# " class="nav-link
              ">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown "><a href="/demo/aasssssssssssssssssssssss-2 " class="nav-link dropdown-toggle " data-toggle="dropdown " aria-expanded="false " "="">testing</a>
            <ul class="nav-child unstyled small dropdown-menu">
              <li class="item-111"><a href="#" class="nav-link">level 3</a></li>
            </ul>
          </li>
          <li class="item-105"><a href="#" class="nav-link">testing</a></li>
          <li class="item-106"><a href="#" class="nav-link">testing</a></li>
          <li class="item-107"><a href="#" class="nav-link">testing</a></li>
          <li class="item-108"><a href="#" class="nav-link">testing</a></li>
          <li class="item-109"><a href="#" class="nav-link">testing</a></li>
          <li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li>
          <li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "=" ">testing</a><ul class="nav-child unstyled small dropdown-menu "><li class="item-110 "><a href="# " class="nav-link
              ">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown "><a href="/demo/aasssssssssssssssssssssss-2 " class="nav-link dropdown-toggle " data-toggle="dropdown " aria-expanded="false " "="">testing</a>
            <ul class="nav-child unstyled small dropdown-menu">
              <li class="item-111"><a href="#" class="nav-link">level 3</a></li>
            </ul>
          </li>
          <li class="item-105"><a href="#" class="nav-link">testing</a></li>
          <li class="item-106"><a href="#" class="nav-link">testing</a></li>
          <li class="item-107"><a href="#" class="nav-link">testing</a></li>
          <li class="item-108"><a href="#" class="nav-link">testing</a></li>
          <li class="item-109"><a href="#" class="nav-link">testing</a></li>
          <li class="item-102 default current active"><a href="/demo/" class=" nav-link">Welcome!</a></li>
          <li class="item-103 deeper parent dropdown"><a href="#" title="#pageSubmenu" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-expanded="false" "=" ">testing</a><ul class="nav-child unstyled small dropdown-menu "><li class="item-110 "><a href="# " class="nav-link
              ">level 2</a></li></ul></li><li class="item-104 deeper parent dropdown "><a href="/demo/aasssssssssssssssssssssss-2 " class="nav-link dropdown-toggle " data-toggle="dropdown " aria-expanded="false " "="">testing</a>
            <ul class="nav-child unstyled small dropdown-menu">
              <li class="item-111"><a href="#" class="nav-link">level 3</a></li>
            </ul>
          </li>
          <li class="item-105"><a href="#" class="nav-link">testing</a></li>
          <li class="item-106"><a href="#" class="nav-link">testing</a></li>
          <li class="item-107"><a href="#" class="nav-link">testing</a></li>
          <li class="item-108"><a href="#" class="nav-link">testing</a></li>
          <li class="item-109"><a href="#" class="nav-link">testing</a></li>
        </ul>
      </div>
    </div>
  </nav>
  <div class="off-canvas-overlay"></div>
</body>

</html>
    推荐文章
    关于   移动版
    代码之家 - 一站式码农服务社区
    沪ICP备11025650号