CSS Counter Increment不起作用

Question

这是我的CSS和HTML：

.moving-steps > li:before {
  background: none repeat scroll 0 0 #8F8888;
  border-radius: 15px;
  color: #FFFFFF;
  counter-increment: headings 1;
  content: counter(headings, decimal);
  display: block;
  float: left;
  font-size: 16px;
  font-weight: bold;
  height: 25px;
  line-height: 26px;
  margin-bottom: 0;
  margin-right: 5px;
  text-indent: 8px;
  width: 25px;
}

<ul class="moving-steps">
  <li></li>
  <li></li>
  <li></li>
</ul>

此代码无效。

 counter-increment: headings 1;  
 content: counter(headings, decimal); 

每次都会插入1，我缺少什么？

Answer 1

你应该在ul本身上有这个css：

.moving-steps {
    counter-reset: headings;
}

和counter-increment只应包含headings：

.moving-steps > li:before {
    counter-increment: headings;
}

查看此JS Fiddle：

.moving-steps {
  counter-reset: headings;
  list-style: none;
}
.moving-steps > li:before {
  background: none repeat scroll 0 0 #8F8888;
  border-radius: 15px;
  color: #FFFFFF;
  counter-increment: headings;
  content: counter(headings, decimal);
  display: block;
  float: left;
  font-size: 16px;
  font-weight: bold;
  height: 25px;
  line-height: 26px;
  margin-bottom: 0;
  margin-right: 5px;
  text-indent: 8px;
  width: 25px;
}

<ul class="moving-steps">
  <li>First item</li>
  <li>Second item</li>
  <li>Third item</li>
</ul>

Answer 2

另外添加以下样式

body{counter-reset: headings;}

然后值将增加