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Safari使用白色/淡白色渲染透明线性渐变

linear-gradients safari css html

gr4viton · 技术社区 · 6 年前

我想创建一个从左到右的线性渐变,以透明开始,以黑色结束。

.box1 {
  border: solid 1px #ccc;
  margin: 10px;
  max-width: 500px;
  height: 40px;
  position: relative;
  font-size: 30px;
  white-space: nowrap;
  overflow: hidden;
  background-color: #2d2d2d;
  color: red;
}
.box1::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-image: linear-gradient(
    to right, rgba(255,255,255,0.01), #2d2d2d
  );
}

.box2 {
  border: solid 1px #ccc;
  margin: 10px;
  max-width: 500px;
  height: 40px;
  position: relative;
  font-size: 30px;
  white-space: nowrap;
  overflow: hidden;
  background-color: #2d2d2d;
  color: red;
}
.box2::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 100px;
  background-image: linear-gradient(
    to right, rgba(255,255,255,0), #2d2d2d
  );
}

.box3 {
  border: solid 1px #ccc;
  margin: 10px;
  max-width: 500px;
  height: 40px;
  position: relative;
  font-size: 30px;
  white-space: nowrap;
  overflow: hidden;
  background-color: rgba(45,45,45,1);
  color: red;
}
.box3::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 100px;
  background: linear-gradient(to right, rgba(255,255,255,0) 0%,rgba(45,45,45,1) 100%);
}

.fade1 {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 75px;
  background: linear-gradient(
    to right, rgba(255,255,255,0), black
  );
}

.box {
  border: solid 1px #ccc;
  margin: 10px;
  max-width: 500px;
  height: 40px;
  position: relative;
  font-size: 30px;
  white-space: nowrap;
  overflow: hidden;
  background-color: black;
  color: white;
}

<div class="box1">
</div>
<div class="box2">
</div>
<div class="box3">
</div>

<div class="box">
  <span class="fade1"></span>
</div>

这里还有一个 codepen 为你。

Chrome以我想要的方式渲染它,但是在Safari上结果不一样。它没有透明的“颜色”,而是白色或淡白色。

我知道transparent关键字在Safari上有不同的行为,所以我根本不使用它。

你们有办法吗?

1 回复 | 直到 6 年前

gr4viton 6 年前

可以。结果在Safari上,透明色应该和结束色有相同的rgb。

所以:

如果结束颜色为黑色,则开始颜色应为rgba(0,0,0,0)
如果结束颜色为红色,则开始颜色应为rgba(255,0,0,0)

.fade1 {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 75px;
  background: linear-gradient(
    to right, rgba(0,0,0,0), black
  );
}

.box {
  border: solid 1px #ccc;
  margin: 10px;
  max-width: 500px;
  height: 40px;
  position: relative;
  font-size: 30px;
  white-space: nowrap;
  overflow: hidden;
  background-color: black;
  color: white;
}

<div class="box">
  adsfasdfsdafasdfdasfdasfasdfdasfdasfdsfdasf
  <span class="fade1"></span>
</div>