在 Firefox 中设置选择元素的样式
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【中文标题】在 Firefox 中设置选择元素的样式【英文标题】：Styling a select element in Firefox 【发布时间】：2012-03-26 02:21:08 【问题描述】：我正在尝试在 Firefox 中设置 <select> 的样式。在 chrome 中，我使用：
-webkit-appearance: none;
background: #eeeeee url("../img/select-arrow.jpg") no-repeat center right;
但在 Firefox 上我似乎无法获得相同的结果
-moz-appearance: none;
background: #eeeeee url("../img/select-arrow.jpg") no-repeat center right;
有什么想法吗？谢谢。
【问题讨论】：
【参考方案1】：看起来这是 Firefox 上的错误：-moz-appearance:none 带有选择元素。 有关更多信息，请参阅此错误报告：https://bugzilla.mozilla.org/show_bug.cgi?id=649849
【讨论】：
我不太确定这是一个“错误”。使用-moz-appearance: none，选择基本上是通过类似组件的匿名 DOM 实现的，页面无法设置样式。
不敢相信这个错误还没有修复。
不敢相信这个错误还没有被修复...... :)
不敢相信这个错误还没有修复。
已在 Firefox 35 中修复【参考方案2】：
编辑[2]：由于 @joão-cunha 的 awesome trick 在 FF30 中停止工作，请参阅这个新的解决方法：http://jsfiddle.net/sstur/2EZ9f/（基于 @keska 的 display:flex 修复和一些文本阴影魔术）
编辑：这可以使用纯 CSS 来完成，如下所示：http://jsfiddle.net/sstur/fm5Jt/
这将在 Chrome、Firefox、IE10+ 中设置样式，并在旧 IE 和其他旧版浏览器中优雅降级。它使用各种特定于供应商的解决方法，包括您提到的-webkit-appearance: none。
【讨论】：
【参考方案3】：您可以尝试为-moz-appearance 属性使用不同的值。例如
-moz-appearance: toolbox; 对我来说很好。
可在此处找到完整的值列表：https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-appearance
【讨论】：
【参考方案4】：与此完全相同：https://***.com/a/18317228/1411163
同样的答案：
刚刚弄清楚如何从 Firefox 中删除选择箭头。诀窍是混合使用 -prefix-appearance、text-indent 和 text-overflow。它是纯 CSS，不需要额外的标记。
select
-moz-appearance: none;
text-indent: 0.01px;
text-overflow: '';
在 Windows 8、Ubuntu 和 Mac、最新版本的 Firefox 上测试。
现场示例：http://jsfiddle.net/joaocunha/RUEbp/1/
更多主题：https://gist.github.com/joaocunha/6273016
【讨论】：
很高兴找到 João！我已经更新了我的 JSFiddle 以实现您的技巧以及 Webkit 和 IE 以形成一个非常好的纯 CSS 跨浏览器解决方案。【参考方案5】：从 Firefox 35 开始，您已经在代码中编写了“-moz-appearance:none”，最后根据需要删除箭头按钮。
自该版本以来，bug 已解决。
【讨论】：
【参考方案6】：试试下面的代码示例：
<h2>CSS-only custom-styled selects v8</h2>
<p><Strong>How this works:</strong> This styles a native select consistently cross-platform with only minimal CSS. The native select is then styled so it is essentially invisible (no appearance, border, bg) leaving only the select's text visible. There is a wrapper around the select that has the majority of the button styles (gradient, shadow, border, etc.). We then add the custom arrow via a pseudo element to the right. </p>
<label>Native select</label>
<select>
<option>Apples</option>
<option>Bananas</option>
<option>Grapes</option>
<option>Oranges</option>
<option selected>A very long option name to test wrapping</option>
</select>
<label class="wrapper">This label wraps the select
<div class="button custom-select ff-hack">
<select>
<option>Apples</option>
<option>Bananas</option>
<option>Grapes</option>
<option>Oranges</option>
<option>A very long option name to test wrapping</option>
</select>
</div>
</label>
<label class="wrapper" for="states">This label is stacked above the select</label>
<div class="button custom-select">
<select id="states">
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH">Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</div>
<div style="width:50%; min-width:10em;">
<label class="wrapper">In 50% wide container
<div class="button custom-select">
<select>
<option>Apples</option>
<option>Bananas</option>
<option>Grapes</option>
<option>Oranges</option>
<option>A very long option name to test wrapping and visual collisions</option>
</select>
</div>
</label>
</div>
<label>Text input:
<input type="text" placeholder="I'm a placeholder">
</label>
<h4><a href="https://twitter.com/toddmparker">Todd Parker</a> - <a href="http://www.filamentgroup.com">Filament Group Inc.</a></h4>
<h4>Taken From <a href="http://jsbin.com/yaruh/edit?html,output">Todd Parker's JSBIN</a></h4>
<h4>Taken From <a href="https://gist.github.com/joaocunha/6273016">Joaocunha's Gist</a></h4>
<p><strong>Joaocunha's Update:</strong> <a href="https://hg.mozilla.org/mozilla-central/rev/161e4dbfff7d">Thu Oct 02, 2014</a><br>
Mozilla to address this issue (Target: v.35)<br>
<i>Bug 649849, part 1 - Make -moz-appearance:none on a combobox remove the dropdown button (for WebKit compat). r=roc</i></p>
<h2>Confirmed to work in the following browsers</h2>
<p>This technique seems to be functional everywhere since we're still leaving the native select in place. Worst case, the native select styling and the custom arrow will both show up but in all popular platforms, this looks very good and consistent. One minor caveat: setting the select to 110% means the menu may open up a bit wider than expected in Firefox. <a href="http://postimg.org/image/g7i0o6mr1/">Visual Test results</a></p>
<h3>Custom select styled consistently</h3>
<ul>
<li>ios 4/5/6/7/8 - looks good, iOS3 even works fine but isn't quite as pretty</li>
<li>android 2.2/2.3 (Browser) - looks good</li>
<li>Android 4.0/4.1/4.2 (Browser) - looks good</li>
<li>Android 4.0/4.1/4.2/4.3/4.4 (Chrome) - looks good</li>
<li>WP8 - looks good</li>
<li>Kindle Fire 2/HD - looks good</li>
<li>IE 10/11 - looks good</li>
<li>Safari 5 - looks good</li>
<li>Chrome 22-35 - looks good</li>
<li>Opera 15-22 - looks good</li>
</ul>
<h3>Custom select with minor visual issues</h3>
<ul>
<li>iOS3 even works fine but isn't quite as pretty</li>
<li>Firefox (all versions) - select menu when open is wider then it needs to be (by ~50px) to clip off the native arrow. Note that the select text can run under the arrow, no solution found for that.</li>
<li>Opera Mini - alignment of text and arrows is a bit off but it works</li>
<li>Opera Mobile - custom and native arrows both appear</li>
<li>Nokia Asha - Long options can break outside the box</li>
</ul>
<h3>Native select</h3>
<ul>
<li>WP 7.5-7.8 - native select</li>
<li>IE 6/7/8/9 - native select</li>
<li>Opera pre-14 - native select</li>
</ul>
和样式：
/* Some basic page styles */
body
background-color: #fff;
font-family: helvetica, sans-serif;
margin: 4% 10%
/* Label styles: style as needed */
label
display:block;
margin-top:2em;
font-size: 0.9em;
color:#777;
/* Container used for styling the custom select, the buttom class below adds the bg gradient, corners, etc. */
.custom-select
position: relative;
display:block;
margin-top:0.5em;
padding:0;
/* These are the "theme" styles for our button applied via separate button class, style as you like */
.button
border: 1px solid #bbb;
border-radius: .3em;
box-shadow: 0 1px 0 1px rgba(0,0,0,.04);
background: #f3f3f3; /* Old browsers */
background: -moz-linear-gradient(top, #ffffff 0%, #e5e5e5 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(100%,#e5e5e5)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, #ffffff 0%,#e5e5e5 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, #ffffff 0%,#e5e5e5 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, #ffffff 0%,#e5e5e5 100%); /* IE10+ */
background: linear-gradient(to bottom, #ffffff 0%,#e5e5e5 100%); /* W3C */
/* This is the native select, we're making everything but the text invisible so we can see the button styles in the wrapper */
.custom-select select
width:100%;
margin:0;
background:none;
border: 1px solid transparent;
outline: none;
/* Prefixed box-sizing rules necessary for older browsers */
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
/* Remove select styling */
appearance: none;
-webkit-appearance: none;
/* Font size must the 16px or larger to prevent iOS page zoom on focus */
font-size:16px;
/* General select styles: change as needed */
font-family: helvetica, sans-serif;
font-weight: bold;
color: #444;
padding: .6em 1.9em .5em .8em;
line-height:1.3;
/* Custom arrow sits on top of the select - could be an image, SVG, icon font, etc. or the arrow could just baked into the bg image on the select. Note this si a 2x image so it will look bad in browsers that don't support background-size. In production, you'd handle this resolution switch via media query but this is a demo. */
.custom-select::after
content: "";
position: absolute;
width: 9px;
height: 8px;
top: 50%;
right: 1em;
margin-top:-4px;
background-image: url(http://filamentgroup.com/files/select-arrow.png);
background-repeat: no-repeat;
background-size: 100%;
z-index: 2;
/* These hacks make the select behind the arrow clickable in some browsers */
pointer-events:none;
/* Hover style */
.custom-select:hover
border:1px solid #888;
/* Focus style */
.custom-select select:focus
outline:none;
box-shadow: 0 0 1px 3px rgba(180,222,250, 1);
background-color:transparent;
color: #222;
border:1px solid #aaa;
/* Set options to normal weight */
.custom-select option
font-weight:normal;
/* ------------------------------------ */
/* START OF UGLY BROWSER-SPECIFIC HACKS */
/* ---------------------------------- */
/* OPERA - Pre-Blink nix the custom arrow, go with a native select button to keep it simple. Targeted via this hack http://browserhacks.com/#hack-a3f166304aafed524566bc6814e1d5c7 */
x:-o-prefocus, .custom-select::after
display:none;
/* IE 10/11+ - This hides native dropdown button arrow so it will have the custom appearance, IE 9 and earlier get a native select - targeting media query hack via http://browserhacks.com/#hack-28f493d247a12ab654f6c3637f6978d5 - looking for better ways to achieve this targeting */
/* The second rule removes the odd blue bg color behind the text in the select button in IE 10/11 and sets the text color to match the focus style's - fix via http://***.com/questions/17553300/change-ie-background-color-on-unopened-focused-select-box */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none)
.custom-select select::-ms-expand
display: none;
.custom-select select:focus::-ms-value
background: transparent;
color: #222;
/* FIREFOX won't let us hide the native select arrow, so we have to make it wider than needed and clip it via overflow on the parent container. The percentage width is a fallback since FF 4+ supports calc() so we can just add a fixed amount of extra width to push the native arrow out of view. We're applying this hack across all FF versions because all the previous hacks were too fragile and complex. You might want to consider not using this hack and using the native select arrow in FF. Note this makes the menus wider than the select button because they display at the specified width and aren't clipped. Targeting hack via http://browserhacks.com/#hack-758bff81c5c32351b02e10480b5ed48e */
/* Show only the native arrow */
@-moz-document url-prefix()
.custom-select
overflow: hidden;
.custom-select select
width: 120%;
width: -moz-calc(100% + 3em);
width: calc(100% + em);
/* Firefox focus has odd artifacts around the text, this kills that. See https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-focusring */
.custom-select select:-moz-focusring
color: transparent;
text-shadow: 0 0 0 #000;
/* ------------------------------------ */
/* END OF UGLY BROWSER-SPECIFIC HACKS */
/* ------------------------------------ */
参考：http://jsfiddle.net/xvushd7x/
【讨论】：
【参考方案7】：我想让 Firefox 中的 select 元素看起来像在 Chrome 中一样（在撰写本文时）。此 CSS 包含用于替换向下 V 形的 svg。
select
width: 100px;
height: 30px;
border: 1px solid #ccc;
border-radius: 3px;
background-color: white;
@-moz-document url-prefix()
-moz-appearance: none;
background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat center right;
<select>
<option>The quick</option>
<option>Brown fox</option>
<option>Jumps over</option>
<option>The lazy</option>
<option>Doggo</option>
</select>【讨论】：
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