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html - 如何使语音框的大小自动

问题描述

我已经创建了一个语音框，但我遇到了问题我无法根据需要使语音框自动更改其大小（高度和宽度）。它应该根据其内容获取空间。如果里面的内容是大盒子尺寸应该固定在里面如果内容是小盒子应该自动缩小尺寸

.hide {
  display: none;
}

.speech {
  position: absolute;
  left: 0;
  top: -22rem;
  width: 400px;
  height: 300px;
  text-align: center;
  line-height: 100px;
  background-color: #fff;
  border: 8px solid #ff5733;
  -webkit-border-radius: 30px;
  -moz-border-radius: 30px;
  border-radius: 30px;
  -webkit-box-shadow: 2px 2px 4px #888;
  -moz-box-shadow: 2px 2px 4px #888;
  box-shadow: 2px 2px 4px #888;
  display: none;
}

.speech:after {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  left: 38px;
  top: 300px;
  border: 15px solid;
  border-color: #fff transparent transparent #fff;
}

.speech:before {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  left: 30px;
  top: 300px;
  border: 25px solid;
  border-color: #ff5733 transparent transparent #ff5733;
}

.myDIV {
  position: relative;
}

.myDIV:hover .speech {
  display: block;
  color: green;
}
<h2>Display an Element on Hover</h2>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<span><span>
hello buddy how do you do <span class="myDIV"> Hover over me.<span class="speech">I am shown when someone hovers over the div above.<p>Other content</p>
<p>Other content</p>
<p>Other content</p></span></span></span> well I am moe optional
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<span><span>
hello buddy how do you do <span class="myDIV"> Hover over me.<span class="speech">I am shown when someone hovers over the div above.</span></span></span> well I am moe optional

标签： htmlcssblogs

解决方案

在更新的代码下方。检查评论：

.hide {
  display: none;
}

.speech {
  position: absolute;
  left: 0;
  /*top: -22rem; removed*/
  bottom:calc(100% + 33px); /* added */
  width: 400px;
  /* height: 300px; removed */
  text-align: center;
  line-height: 100px;
  background-color: #fff;
  border: 8px solid #ff5733;
  border-radius: 30px;
  box-shadow: 2px 2px 4px #888;
  display: none;
}

.speech:after {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  left: 38px;
  /*top: 300px; removed*/
  top:100%; /* added */
  border: 15px solid;
  border-color: #fff transparent transparent #fff;
}

.speech:before {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  left: 30px;
  /*top: 300px; removed*/
  top:100%; /* added */
  border: 25px solid;
  border-color: #ff5733 transparent transparent #ff5733;
}

.myDIV {
  position: relative;
}

.myDIV:hover .speech {
  display: block;
  color: green;
}
<h2>Display an Element on Hover</h2>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<span><span>
hello buddy how do you do <span class="myDIV"> Hover over me.<span class="speech">I am shown when someone hovers over the div above.<p>Other content</p>
<p>Other content</p>
<p>Other content</p></span></span></span> well I am moe optional
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<p>Other content</p>
<span><span>
hello buddy how do you do <span class="myDIV"> Hover over me.<span class="speech">I am shown when someone hovers over the div above.</span></span></span> well I am moe optional

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