我正在尝试用我自己的照片替换选择的箭头。我包括选择在一个div与相同的大小，我设置的背景选择为透明，我包括一个图片(与箭头大小相同)在div的右上角作为背景。
它只适用于Chrome浏览器。
我如何让它在Firefox和IE9中工作，我得到了这个:
.styled-select {
width: 100px;
height: 17px;
overflow: hidden;
overflow: -moz-hidden-unscrollable;
background: url(images/downarrow_blue.png) no-repeat right white;
border: 2px double red;
display: inline-block;
position: relative;
}
.styled-select select {
background: transparent;
-webkit-appearance: none;
width: 100px;
font-size: 11px;
border: 0;
height: 17px;
position: absolute;
left: 0;
top: 0;
}
body {
background-color: #333333;
color: #FFFFFF;
}
.block label {
color: white;
}
<HTML>
<HEAD>
</HEAD>
<BODY>
<p/>
<form action="/prepareUpdateCategoryList.do?forwardto=search">
<fieldset class="block" id="searchBlock">
<p>
<label style="width:80px">Class</label>
<div class="styled-select">
<select property="voucherCategoryClass">
<option value="0">Select </option>
<option value="7382">steam </option>
</select>
</div>
</p>
</fieldset>
</form>
</BODY>
</HTML>
这里有几个例子
它是基于这个答案，但我添加了一个列表，以使设计更加简洁
select.moreMinimal {
background-color: inherit;
display: inline-block;
font: inherit;
padding: 0 2.2em 0 1em;
margin: 0;
cursor: pointer;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-appearance: none;
-moz-appearance: none;
}
select.moreMinimal {
background-image:
linear-gradient(45deg, transparent 50%, gray 50%),
linear-gradient(135deg, gray 50%, transparent 50%);
background-position:
calc(100% - 20px),
calc(100% - 15px);
background-size:
5px 5px,
5px 5px;
background-repeat: no-repeat;
}
//TODO: Probably shouldn't be focus, cause when you click it again it's still green
select.moreMinimal:focus {
background-image:
linear-gradient(45deg, green 50%, transparent 50%),
linear-gradient(135deg, transparent 50%, green 50%);
background-position:
calc(100% - 15px),
calc(100% - 20px);
background-size:
5px 5px,
5px 5px;
background-repeat: no-repeat;
border-color: green;
outline: 0;
}
我设置了一个自定义箭头的选择，类似于Julio的答案，但它没有设置宽度，并使用svg作为背景图像。(arrow_drop_down from material-ui icons)
select {
-webkit-appearance: none;
-moz-appearance: none;
background: transparent;
background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
background-repeat: no-repeat;
background-position-x: 100%;
background-position-y: 5px;
border: 1px solid #dfdfdf;
border-radius: 2px;
margin-right: 2rem;
padding: 1rem;
padding-right: 2rem;
}
如果你需要它也在IE中工作，更新svg箭头到base64并添加以下内容:
select::-ms-expand { display: none; }
background-image: url(data:image/svg+xml;base64,PHN2ZyBmaWxsPSdibGFjaycgaGVpZ2h0PScyNCcgdmlld0JveD0nMCAwIDI0IDI0JyB3aWR0aD0nMjQnIHhtbG5zPSdodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2Zyc+PHBhdGggZD0nTTcgMTBsNSA1IDUtNXonLz48cGF0aCBkPSdNMCAwaDI0djI0SDB6JyBmaWxsPSdub25lJy8+PC9zdmc+);
为了方便调整箭头的大小和间距，可以使用svg:
url("data:image/svg+xml,<svg width='24' height='24' xmlns='http://www.w3.org/2000/svg'><path d='m0,6l12,12l12,-12l-24,0z'/><path fill='none' d='m0,0l24,0l0,24l-24,0l0,-24z'/></svg>");
它在箭头两侧没有任何间距。
