我曾多次使用float:右(或左)将图像和嵌入框浮动在容器顶部。现在，我需要浮动一个div到另一个div的右下角与正常的文本包装，你得到的浮动(文本包装上面和左边只有)。
我认为这一定是相对容易的，即使浮动没有底部值，但我还没有能够做到这一点使用一些技术和搜索网络还没有出现任何其他使用绝对定位，但这并没有给出正确的换行行为。
我原以为这是一种很常见的设计，但显然不是。如果没有人有建议，我将不得不把我的文本分解成单独的盒子，并手动对齐div，但这是相当不稳定的，我不想在每个需要它的页面上都这样做。
当前回答
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>
其他回答
设置父div为position: relative，然后内部div为…
position: absolute;
bottom: 0;
.．.就这样了。
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> <span class='speech-bubble'> This text is supposed to wrap the time <span> which always seats at the corner of this bubble. <span class='inline-time'>13:55</span> </span> </li> <li> <span class='speech-bubble'> Absolute positioning doesn't work because it doesn't care if the two pieces of text overlap. We want to float. <span class='inline-time'>13:55</span> </span> </li> <li> <span class='speech-bubble'> Easy, uh? <span class='inline-time'>13:55</span> </span> </li> <li> <span class='speech-bubble'> Well, not <span class='giant-text'>THAT</span> easy <span class='inline-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> <span class='tremendous-giant-text'>See?</span> <span class='inline-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> The problem is, we can't tell the span to float to right AND bottom... <span class='inline-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> 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. <span class='inline-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> <span class='tremendous-giant-text'>See?</span> <span class='inline-time'>13:56</span> <span class='absolute-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> Make the floated span invisible. <span class='inline-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> <span class='tremendous-giant-text'>See?</span> <span class='inline-time hidden'>13:56</span> <span class='absolute-time'>13:56</span> </span> </li> <li> <span class='speech-bubble'> The giant text here is to simulate images which are common in a typical chat app. <span class='tremendous-giant-text'>Done!</span> <span class='inline-time hidden'>13:56</span> <span class='absolute-time'>13:56</span> </span> </li> </ul>
这是现在可能的flex box。 只需设置父div的“display”为“flex”，并设置“margin-top”属性为“auto”。 这不会扭曲两个div的任何属性。
.parent { 显示:flex; 身高:100 px; 边框:1px #0f0f0f; ｝ .child { margin-top:汽车; 边框:实心1px #000; 宽度:40像素; 单词分割:打破所有; ｝ <div class=" parent"> <div class="child">我在底部!< / div > < / div >
试试这个CSS+Javascript解决方案。从右上方的浮动div开始，然后计算一个零宽度的div的高度，沿着右边缘将浮动div推到底部。这段代码可能需要一些调整来获得正确的高度。
<style>
#mainbox {border:4px solid red;width:500px;padding:10px;}
.rightpad {float:right;clear:right;padding:0;width:0;}
#floater {background-color:red;text-align:center;color:#FFF;width:300px;height:100px;float:right;margin-right:-10px;margin-top:10px;}
</style>
<script>
window.onload = function() {
var mmheight = document.getElementById("mainbox").clientHeight;
var ff = document.getElementById("floater");
var ffheight = ff.clientHeight;
var dd = document.createElement('div');
dd.className = "rightpad";
dd.style.height = (mmheight - ffheight - 20) * 1 + "px";
ff.parentNode.insertBefore(dd,ff);
}
</script>
<div id="mainbox">
<div id="floater" class="rightpad">123</div>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam posuere tellus et dolor vestibulum gravida. Donec vel nunc massa. Quisque quis varius libero. Fusce ut elementum magna. Praesent hendrerit diam sed velit rutrum mollis. Nunc pretium metus in tempus tempus. Quisque laoreet nibh eget volutpat dictum. Pellentesque libero ipsum, tristique et aliquam aliquam, accumsan sed sem. Phasellus facilisis sem eget mi tempus rhoncus.</p></div>
要将任何元素放在其容器的底部，只需使用以下命令:
div {
position: absolute;
bottom: 0px;
}
