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隐藏第二个元素,直到第一个元素完成动画-CSS关键帧

keyframe css-animations css html

HappyHands31 · 技术社区 · 4 年前

@keyframes slideInFromRight {
    0% {
      transform: translateX(100%);
    }
    100% {
      transform: translateX(0);
    }
}

.announcements-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    width: 300px;
}

.announcements-1 {
    animation: 0.4s ease-out 0s 1 slideInFromRight;
  }
  
.announcements-2 {
    margin-top: 15px;
    /* opacity: 0; */
    /* display: none; */
    /* animation-fill-mode: both; */
    animation: 0.4s ease-out 0s 1 slideInFromRight;
    animation-delay: 0.4s;
}

.annoucements-header {
    background-color: #1481C3;
    color: #ffffff;
    font-family: "Proxima Nova Bold";
    padding: 7px 10px;
}

.annoucements-close {
    position: absolute;
    right: 5px;
    width: 24px;
    height: 36px;
    cursor: pointer;
    opacity: .85;
}
.annoucements-close:hover {
    opacity: 1;
}
.annoucements-close::before,
.annoucements-close::after {
    content: '';
    width: 24px;
    height: 2px;
    background: white;
    position: absolute;
    top: 7px;
    left: 0;
}
.annoucements-close::before {
    transform: rotate(-45deg);
}
.annoucements-close::after {
    transform: rotate(45deg);
}

<body>
<div class="announcements-container">
    <div class="announcements-1">
      <div class="annoucements-header">
        <span class="annoucement-type-quantity">2 School Announcements</span>
        <i class="annoucements-close"></i>
      </div>
    </div>
    <div class="announcements-2">
      <div class="annoucements-header">
        <span class="annoucement-type-quantity">1 Admin Annoucement</span>
        <i class="annoucements-close"></i>
      </div>
    </div>
  </div>
</body>

但正如您所看到的,第二个div仍然显示,而第一个div从右侧滑入。我试着添加 animation-delay , transition-delay ,将延迟值更改为 0.4 排队 animation: 0.4s ease-out 0.4s 1 slideInFromRight;

@keyframes slideInFromRight {
    0% {
      transform: translateX(100%);
    }
    100% {
      transform: translateX(0);
    }
}

@keyframes slideInFromRight2 {
    0% {
        transform: translateX(100%);
    }
    100% {
        transform: translateX(0);
    }
}

.announcements-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    width: 300px;
}

.announcements-1 {
    animation: 0.4s ease-out 0s 1 slideInFromRight;
  }
  
.announcements-2 {
    margin-top: 15px;
    /* opacity: 0; */
    /* display: none; */
    /* animation-fill-mode: both; */
    -webkit-animation: slideInFromRight2 0.4s ease-out 1s 1 normal;
    -moz-animation: slideInFromRight2 0.4ss ease-out 1s 1 normal;
    -o-animation: slideInFromRight2 0.4s ease-out 1s 1 normal;
    animation: slideInFromRight2 0.4s ease-out 1s 1 normal;
}

.annoucements-header {
    background-color: #1481C3;
    color: #ffffff;
    font-family: "Proxima Nova Bold";
    padding: 7px 10px;
}

.annoucements-close {
    position: absolute;
    right: 5px;
    width: 24px;
    height: 36px;
    cursor: pointer;
    opacity: .85;
}
.annoucements-close:hover {
    opacity: 1;
}
.annoucements-close::before,
.annoucements-close::after {
    content: '';
    width: 24px;
    height: 2px;
    background: white;
    position: absolute;
    top: 7px;
    left: 0;
}
.annoucements-close::before {
    transform: rotate(-45deg);
}
.annoucements-close::after {
    transform: rotate(45deg);
}

<车身>
<div class=“公告容器”>
<div class=“announces header”>
<span class=“announcement type quantity”>2学校公告</span>
<i class=“announces close”></i>
</div>
</div>
<div class=“announces header”>
<span class=“annoucement type quantity”>1管理公告</span>
<i class=“announces close”></i>
</div>
</div>
</body>

Link to JSFiddle

1 回复 | 直到 4 年前

arnavpanwar99 4 年前

对于这个问题,有一种纯CSS的方法,这种方法是首先对每个你想设置动画的元素,给出一个 opacity: 0 @keyframes 动画开始后,将其“不透明度”(opacity)设置为1。然后动画看起来像:

@keyframes slideInFromRight {
  0% {
    transform: translateX(100%);
  }
  .1%{
    opacity: 1;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}

并添加到要设置动画的每个元素在css中 animation-fill-mode: forwards