绝对 div 高度在相对 div 内被截断

Question

我无法正确显示一个绝对定位的 div。除非我为父（相对）div 设置一个我无法做到的高度，否则它会被切断，因为我永远不会知道所需的高度。

我最初没有使用任何绝对定位，但 comm div 的内容被包裹在 avatar div 下方，所以我认为绝对定位可以解决它，它已经解决了，除了文本在底部。

这是结构，您可以在this fiddle 中看到发生了什么。

body {
  background: #212121;
  font-family: arial;
}

.main {
  width: 80%;
  margin: 20px auto;
}

.wrap {
  width: 100%;
  background: white;
  padding: 10px;
  overflow: hidden;
  position: relative;
}

a.avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  overflow: hidden;
  display: inline-block;
  float: left;
  margin-right: 10px;
  position: relative;
}

a.avatar img {
  width: 100%;
}

.top {
  display: block;
  overflow: hidden;
  position: absolute;
  left: 70px;
}

a.name {
  font-weight: bold;
  margin-right: 10px;
  float: left;
}

.posted {
  color: #BBB;
  font-size: 12px;
  padding-top: 3px;
  float: left;
}

p.comm {
  display: block;
  position: absolute;
  left: 70px;
  top: 20px;
  height: 100%;
}

<div class="main">
  <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png" /></a>
    <div class="top">
      <a href="https://example.com" class="name">John Doe</a>
      <div class="posted">8 mins ago</div>
    </div>
    <p class="comm">Lorem ipsum dolor sit amet.
    </p>
  </div>
  <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png" /></a>
    <div class="top">
      <a href="https://example.com" class="name">Jane Doe</a>
      <div class="posted">11 mins ago</div>
    </div>
    <p class="comm">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
    </p>
  </div>
  <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png" /></a>
    <div class="top">
      <a href="https://example.com" class="name">Jimmy Doe</a>
      <div class="posted">18 mins ago</div>
    </div>
    <p class="comm">Ut enim ad minim veniam.
    </p>
  </div>
</div>

Answer 1

尝试使用此修改后的 css 代码。

body {
  background: #212121;
  font-family: arial;
}

.main {
  width: 80%;
  margin: 20px auto;
}

.wrap {
  width: 100%;
  background: white;
  padding: 10px;
  position: relative;
}

a.avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  overflow: hidden;
  display: inline-block;
  float: left;
  margin-right: 10px;
  position: relative;
}

a.avatar img {
  width: 100%;
}

.top {
  display: flex;
  margin-left: 70px;
}

a.name {
  font-weight: bold;
  margin-right: 10px;
}

.posted {
  color: #BBB;
  font-size: 12px;
  padding-top: 3px;
}

p.comm {
  display: block;
  margin-left: 70px;
  height: 100%;
}

Answer 2

您需要将.top 和.comm 包装在div 中，并使用flex 来实现它

body {
  background: #212121;
  font-family: arial;
}

.main {
  width: 80%;
  margin:20px auto;
}

.wrap {
  width: 100%;
  background: white;
  padding: 10px;
  overflow: hidden;
  position: relative;
  display: flex;
}

a.avatar {
  margin-right: 10px;
}
a.avatar img {
  width: 45px;
  height: 45px;
  border-radius: 50%;
}

.top {
  width: 100%;
  overflow: hidden;
}

a.name {
  font-weight: bold;
  margin-right: 10px;
  float: left;
}

.posted {
  color: #BBB;
  font-size: 12px;
  padding-top: 3px;
  float: left;
}

p.comm {
  margin-top: 5px;
}
.right {
  max-width: 88%;
}

<div class="main">

    <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png"></a>
    <div class="right">
    	<div class="top">
          <a href="https://example.com" class="name">Jane Doe</a>
          <div class="posted">11 mins ago</div>
        </div>
    <p class="comm">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do </p>
    </div>
  </div>

	  <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png"></a>
    <div class="right">
    	<div class="top">
          <a href="https://example.com" class="name">Jane Doe</a>
          <div class="posted">11 mins ago</div>
        </div>
    <p class="comm">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    </div>
  </div>
    
    <div class="wrap">
    <a href="https://example.com" class="avatar"><img src="http://www.tangoflooring.ca/wp-content/uploads/2015/07/user-avatar-placeholder.png"></a>
    <div class="right">
    	<div class="top">
          <a href="https://example.com" class="name">Jane Doe</a>
          <div class="posted">11 mins ago</div>
        </div>
    <p class="comm">Lorem ipsum dolor sit amet</p>
    </div>
  </div>

</div>

工作小提琴here

Answer 3

只需修改您的p.comm 选择器，如下所示：

p.comm {
    display: block;
    position: relative;
    top: 10px;
    padding-left: 60px;
}