```html
<section class="demo-block" id="close-demo1">
  <span
    class="vux-close"
    style="width:14px;height:14px;"
  ></span>
  <span class="vux-close"></span>
  <span
    class="vux-close"
    style="width:30px;height:30px;color:#ccc;"
  ></span>
  <span
    class="vux-close vux-close-2px"
    style="width:40px;height:40px;color:#ccc;"
  ></span>
</section>

<script>
// Close.md
new Vue({
  el: '#close-demo1'
})
</script>

<style>
.vux-close-2px:before,
.vux-close-2px:after {
  height: 2px;
  margin-top: -1px;
  background-color: green;
}
</style>
```