这似乎是一个微不足道的问题,但我无法弄清楚。
在Bootstraps自己的网站上,他们有Select示例。
查看代码,看起来该选择元素的边界半径为4。
我希望将border-radius更改为0会从select元素中删除border-radius,但是,情况并非如此 - 如下图所示。
我已经探索了所有改变那个选择元素的CSS,但似乎都没有删除边界半径。
答案 0 :(得分:207)
这是一个适用于所有现代浏览器的版本。关键是使用appearance:none
删除默认格式。由于所有格式都消失了,您必须在箭头中添加回来,以便在视觉上区分选择和输入。 注意:appearance
is not supported in IE。
工作示例:https://jsfiddle.net/gs2q1c7p/
select:not([multiple]) {
-webkit-appearance: none;
-moz-appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: url(data:image/png;base64,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);
padding: .5em;
padding-right: 1.5em
}
#mySelect {
border-radius: 0
}
<select id="mySelect">
<option>Option 1</option>
<option>Option 2</option>
</select>
根据评论中的Arno Tenkink's建议,以下示例使用svg代替png作为箭头图标。
select:not([multiple]) {
-webkit-appearance: none;
-moz-appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: url('data:image/svg+xml;utf8,<?xml version="1.0" encoding="utf-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="12" version="1"><path d="M4 8L0 4h8z"/></svg>');
padding: .5em;
padding-right: 1.5em
}
#mySelect {
border-radius: 0
}
<select id="mySelect">
<option>Option 1</option>
<option>Option 2</option>
</select>
答案 1 :(得分:206)
除border-radius: 0
外,请添加-webkit-appearance: none;
。
答案 2 :(得分:10)
我有同样的问题,当user1732055的答案修复了边框时,它会删除下拉箭头。我通过从select
元素中删除边框并创建具有边框的包装span
来解决此问题。
HTML:
<span class="select-wrapper">
<select class="form-control no-radius">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</span>
的CSS:
select.no-radius{
border:none;
}
.select-wrapper{
border: 1px solid black;
border-radius: 0px;
}
答案 3 :(得分:1)
您可以使用-webkit-border-radius: 0;
。像这样: -
-webkit-border-radius: 0;
border: 0;
outline: 1px solid grey;
outline-offset: -1px;
这将给出方角和下拉箭头。建议不要使用-webkit-appearance: none;
,因为它会关闭Chrome完成的所有样式。
答案 4 :(得分:0)
使用@ArnoTenkink的SVG作为数据网址并结合已接受的答案,这为视网膜显示提供了完美的解决方案。
select.form-control:not([multiple]) {
border-radius: 0;
appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: url(data:image/svg+xml,%3C%3Fxml%20version%3D%221.0%22%20encoding%3D%22utf-8%22%3F%3E%20%3C%21DOCTYPE%20svg%20PUBLIC%20%22-//W3C//DTD%20SVG%201.1//EN%22%20%22http%3A//www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22%3E%20%3Csvg%20version%3D%221.1%22%20id%3D%22Layer_1%22%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20x%3D%220px%22%20y%3D%220px%22%20width%3D%2214px%22%20height%3D%2212px%22%20viewBox%3D%220%200%2014%2012%22%20enable-background%3D%22new%200%200%2014%2012%22%20xml%3Aspace%3D%22preserve%22%3E%20%3Cpolygon%20points%3D%223.862%2C7.931%200%2C4.069%207.725%2C4.069%20%22/%3E%3C/svg%3E);
padding: .5em;
padding-right: 1.5em
}
答案 5 :(得分:-4)
这个班叫做:
.form-control { border-radius: 0; }
确保在包含bootstraps css后插入覆盖。
如果您只想删除选择表格控件上的半径,请使用
select.form-control { ... }
代替
编辑:适用于chrome,firefox,opera和safari,IE9 +(所有运行在linux / safari和IE上的playonlinux上)