带过渡的粘性覆盖层

Question

我想要一个带有转换的叠加层，如下面的截图

这是我目前的代码：

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.someclass {
  padding: 5px 5px 5px 5px;
  border-radius: 5px 0px 0px 5px;
  height: 100px;
  width: 30px;
  top: 50% !important;
  right: 0 !important;
  float: right;
  position: fixed !important;
  transition: width 0.5s;
  -webkit-transition: width 0.5s;
  text-align: center;
  overflow: hidden;
  z-index: 100 !important;
  color: white;
}

.someclass:hover {
  width: 400px;
}

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<div class="someclass" style="background-color: #4A90E2;">
  <h4 style="transform:rotate(-90deg)" ;>Text</h4>
  <h2> Some Text</h2>
  <p>much more text</p>
</div>

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Answer 1

将你的元素分为两部分，然后左右使用浮点数，使用背景，位置和z-index在崩溃时进行叠加

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private String getFixedLengthString(String name, int fixedLength) {
    if(name == null) {
        name = "";
    }
    if(name.length() > fixedLength) {
        name = name.substring(0, fixedLength);
    }
    return String.format("%1$-" + fixedLength + "s", name);
}

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.someclass {
  border-radius: 5px 0px 0px 5px;
  height: 100px;
  width: 30px;
  top: 50% !important;
  right: 0 !important;
  float: right;
  position: fixed !important;
  transition: width 0.5s;
  -webkit-transition: width 0.5s;
  text-align: center;
  overflow: hidden;
  z-index: 100 !important;
  color: white;
}

.someclass .right {
    float: right;
    background: #4A90E2;
    width: 30px;
    height: 100%;
    position: relative;
    z-index: 10;
}

.someclass .left {
    position: absolute;
    left: 0;
    float: left;
}

.someclass:hover {
  width: 400px;
}

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