我如何让一个div浮动到其容器的底部?

浮动和绝对定位的组合对我来说很有用。我试图把消息的发送时间放在语音气泡的右下角。时间不应该与消息体重叠，除非真的有必要，否则它不会使气泡膨胀。

解决方案是这样的:

有两个跨度，文本完全相同; 一个漂浮着，但看不见; 另一个是绝对定位到角落;

不可见的浮动对象的目的是保证可见对象的空间。

.speech-bubble { font-size: 16px; max-width: 240px; margin: 10px; display: inline-block; background-color: #ccc; border-radius: 5px; padding: 5px; position: relative; } .inline-time { float: right; padding-left: 10px; color: red; } .giant-text { font-size: 36px; } .tremendous-giant-text { font-size: 72px; } .absolute-time { position: absolute; color: green; right: 5px; bottom: 5px; } .hidden { visibility: hidden; } <ul> <li> This text is supposed to wrap the time which always seats at the corner of this bubble. 13:55 </li> <li> Absolute positioning doesn't work because it doesn't care if the two pieces of text overlap. We want to float. 13:55 </li> <li> Easy, uh? 13:55 </li> <li> Well, not THAT easy 13:56 </li> <li> See? 13:56 </li> <li> The problem is, we can't tell the span to float to right AND bottom... 13:56 </li> <li> We can combinate float and absolute: use floated span to reserve space (the bubble will be inflated if necessary) so that the absoluted span is safe to go. 13:56 </li> <li> See? 13:56 13:56 </li> <li> Make the floated span invisible. 13:56 </li> <li> See? 13:56 13:56 </li> <li> The giant text here is to simulate images which are common in a typical chat app. Done! 13:56 13:56 </li> </ul>

2020-07-02 18:55:09

这将在页面底部放置一个固定的div，并在向下滚动时修复到页面底部

#div {
    left: 0;
    position: fixed;
    text-align: center;
    bottom: 0;
    width: 100%;
}

2010-09-07 15:07:44

浮动和绝对定位的组合对我来说很有用。我试图把消息的发送时间放在语音气泡的右下角。时间不应该与消息体重叠，除非真的有必要，否则它不会使气泡膨胀。

解决方案是这样的:

有两个跨度，文本完全相同; 一个漂浮着，但看不见; 另一个是绝对定位到角落;

不可见的浮动对象的目的是保证可见对象的空间。

.speech-bubble { font-size: 16px; max-width: 240px; margin: 10px; display: inline-block; background-color: #ccc; border-radius: 5px; padding: 5px; position: relative; } .inline-time { float: right; padding-left: 10px; color: red; } .giant-text { font-size: 36px; } .tremendous-giant-text { font-size: 72px; } .absolute-time { position: absolute; color: green; right: 5px; bottom: 5px; } .hidden { visibility: hidden; } <ul> <li> This text is supposed to wrap the time which always seats at the corner of this bubble. 13:55 </li> <li> Absolute positioning doesn't work because it doesn't care if the two pieces of text overlap. We want to float. 13:55 </li> <li> Easy, uh? 13:55 </li> <li> Well, not THAT easy 13:56 </li> <li> See? 13:56 </li> <li> The problem is, we can't tell the span to float to right AND bottom... 13:56 </li> <li> We can combinate float and absolute: use floated span to reserve space (the bubble will be inflated if necessary) so that the absoluted span is safe to go. 13:56 </li> <li> See? 13:56 13:56 </li> <li> Make the floated span invisible. 13:56 </li> <li> See? 13:56 13:56 </li> <li> The giant text here is to simulate images which are common in a typical chat app. Done! 13:56 13:56 </li> </ul>

2020-07-02 18:55:09

通过一些JavaScript，我成功地将一个浮动元素固定在它的容器底部——并且仍然让它在文本中浮动，这对于像shape-outside这样的事情非常有用。

被浮动的元素得到一个margin-top赋值，它等于它的容器，减去它自己的高度。这将保留浮动，将元素推到其容器的底边，并防止文本在元素下面流动。


const resizeObserver = new ResizeObserver(entries => {
  if(entries.length == 0) return;
  const entry = entries[0];
  if(!entry.contentRect) return;

  const containerHeight = entry.contentRect.height;
  const imgHeight = imgElem.height;
  const imgOffset = containerHeight - imgHeight;
  
  imgElem.style.marginTop = imgOffset + 'px';
});

const imgElem = document.querySelector('.image');
resizeObserver.observe(imgElem.parentElement);

工作示例:https://codepen.io/strarsis/pen/QWGXGVy

多亏了ResizeObserver和对JavaScript的广泛支持，这似乎是一个非常可靠的解决方案。

2021-03-19 12:24:10

另一种解决方案是明智地使用表和行span。通过设置前一行的所有表格单元格(除了主要内容外)为rowspan="2"，您将始终在您的主表格单元格的底部获得一个单元格孔，您可以始终放置valign="bottom"。

您还可以将其高度设置为一行所需的最小值。这样，不管剩下的文本占据了多少空间，你总是会在底部看到你最喜欢的一行文本。

我尝试了所有的div答案，我无法让他们做我需要的。

<table>
<tr>
   <td valign="top">
     this is just some random text
     <br> that should be a couple of lines long and
     <br> is at the top of where we need the bottom tag line
   </td>
   <td rowspan="2">
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     this<br/>
     is really<br/>
     tall
  </td>
</tr>
<tr>
  <td valign="bottom">
      now this is the tagline we need on the bottom
  </td>
</tr>
</table>

2012-01-02 21:24:38

If you're okay with only the bottom-most line of the text going to the side of the block (as opposed to completely around and underneath it, which you can't do without ending the block and starting a new one), it's not impossible to float a block to one of the bottom corners of a parent block. If you put some content in a paragraph tag within a block and want to float a link to the bottom right corner of the block, put the link within the paragraph block and set it to float: right, then put in a div tag with clear: both set just underneath the end of the paragraph tag. The last div is to make sure the parent tag surrounds the floated tags.

<div class="article" style="display: block;">
    <h3>title</h3>
        <p>
            text content
            <a href="#" style="display: block;float: right;">Read More</a>
        </p>
    <div style="clear: both;"></div>
</div>

2010-04-16 06:21:38

我如何让一个div浮动到其容器的底部?

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