清除浮动和溢出

您可以在仓库 Github 上找到本文中的所有代码。

您可以在这里查看视觉效果：

• 清除浮动 - CodeSandbox
• 溢出 - CodeSandbox

---

清晰浮动

  
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Clear Float</title>
    <link rel="stylesheet" href="styles.css">
  
  
    <div>





<pre class="brush:php;toolbar:false">.box {
  float: left;
  width: 100px;
  height: 100px;
  margin: 10px;
  background-color: lightgreen;
}

.container {
  border: 2px solid black;
  padding: 10px;
}

.clearfix::after {
  content: " ";
  display: block;
  height: 0; /* optional */
  visibility: hidden; /* optional */
  clear: both;
}

---

溢出

  
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Overflow</title>
    <link rel="stylesheet" href="styles.css">
  
  
    <p>





</p><pre class="brush:php;toolbar:false">.one-line-overflow {
  width: 40px;
  height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.multiple-lines-overflow {
  width: 40px;
  height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}