opacity應用程式碼例項

admin發表於2017-05-04

分享一段程式碼例項，它利用opacity實現了漸變的色塊效果。

程式碼例項如下:

[HTML] 純文字檢視 複製程式碼
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.softwhy.com/" />
<title>螞蟻部落</title>
<style>
.row{overflow: hidden;}
.row div{
  width: 80px;
  height: 80px;
  line-height: 80px;
  text-align: center;
  float: left;
}
.row:nth-of-type(1) div{
  background-color: #000;
  color: #fff;
}
.row:nth-of-type(2) div{
  background-color: red;
}
.row:nth-of-type(3) div{
  background-color: green;
}
.row:nth-of-type(4) div{
  background-color: blue;
}
.row div:nth-child(1){
  background-color: #000;
  color: #fff;
}
.row div:nth-child(2){
  opacity: 1;
}
.row div:nth-child(3){
  opacity: 0.8;
}
.row div:nth-child(4){
  opacity: 0.6;
}
.row div:nth-child(5){
  opacity: 0.4;
}
.row div:nth-child(6){
  opacity: 0.2;
}
.row:nth-of-type(1) div{
  opacity: 1;
}
</style>
</head>
<body>
  <div class="demo">
    <div class="row">
      <div></div>
      <div>1</div>
      <div>0.8</div>
      <div>0.6</div>
      <div>0.4</div>
      <div>0.2</div>
    </div>
    <div class="row">
      <div>red</div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
    </div>
    <div class="row">
      <div>green</div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
    </div>		
    <div class="row">
      <div>blue</div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
      <div></div>
    </div>
  </div>
</body>
</html>

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