是否可以仅使用 css 进行文本溢出:省略号选择?

Question

是否可以为select制作text-overflow: ellipsis;？在div这很简单。当字符串太长时有点，我需要在select中相同的点。我知道，js是可能的，但我想css决定"轻">

：

.select {
box-sizing: border-box;
display: block;
width: 200px;
height: 34.5px;
padding: 5px 22px 3px 11px;
font: 400 16px/24px sans-serif;
color: #464a4c;
vertical-align: middle;
background: #fff url(data:image/svg+xml;base64,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) no-repeat right 6px top 13px;
border: 1px solid #D6D6D6;
border-radius: 0;
-moz-appearance: none;
-webkit-appearance: none;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis
}

<select class="select">
<option selected>select Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="1">1 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="2">2 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="3">3 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
</select>
<br>
<div class="select">div Mississippi Mississippi Mississippi Mississippi Mississippi</div>

Answer 1

不是最干净的解决方案，但您始终可以"欺骗"它，将选择包装在div 中，并使用伪元素:after在隐藏以下内容的select上放置一个假...：

.select {
box-sizing: border-box;
display: block;
width: 200px;
height: 34.5px;
padding: 5px 22px 3px 11px;
font: 400 16px/24px sans-serif;
color: #464a4c;
vertical-align: middle;
background: #fff url(data:image/svg+xml;base64,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) no-repeat right 6px top 13px;
border: 1px solid #D6D6D6;
border-radius: 0;
-moz-appearance: none;
-webkit-appearance: none;
position:relative;
}
div {
position:relative;
display:inline-block;
}
div:after {
content: '...';
display: block;
background-color: #fff;
height: 15px;
width: 25px;
color: #464a4c;
position: absolute;
right: 23px;
bottom: 11px;
text-align: center;
pointer-events: none;
}

<div>
<select class="select">
<option selected>select Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="1">1 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="2">2 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
<option value="3">3 Mississippi Mississippi Mississippi Mississippi Mississippi</option>
</select>
</div>

我还向元素添加了pointer-events: none;，因此即使您单击它，它仍然会打开下面的选择。