如何使语音框的大小自动

Question

我创建了一个语音框，但我在其中遇到了问题我无法使语音框根据需要自动更改其大小（高度和宽度）。根据其内容应该获取space。如果里面的内容是大框大小应该固定在里面如果内容是小框应该自动缩小大小

.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

Answer 1

更新后的代码下方。查看评论：

.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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