使用 CSS 突出显示单选按钮

Question

我一直在尝试使用 CSS 突出显示单选按钮，但未能成功在 FireFox 中使用样式。我看到了一些使用图像来突出显示的方法。是否有首选方法来处理跨多个浏览器突出显示单选按钮？

例子

<input type="text" style="border-color:#FF0000">
<input type="radio" style="border-color:#FF0000">

文本框将有一个红色的边框，但单选按钮不会采用边框颜色？

Answer 1

单选按钮是操作系统级别的控件，不能像文本框那样真正设置样式。如果您将单选按钮包装在 DIV 或其他内容中，则可以将突出显示应用到 DIV。

Answer 2

Uniform 是一个不错的 javascript 库，它用您可以很好地控制的图形版本替换表单控件：http://pixelmatrixdesign.com/uniform/。这本身并不是一个新想法，但 Uniform 的控件可能是正确执行此操作的最佳尝试 - 它们功能强大、跨浏览器兼容，并且可以在需要时优雅地降级。

Answer 3

试试这个

<style>.imageless-css-3-form-elements label { cursor: hand; cursor: pointer; }

    .imageless-css-3-form-elements label input[type="checkbox"],
    .imageless-css-3-form-elements label input[type="radio"],
    .imageless-css-3-form-elements label input[type="checkbox"] + span,
    .imageless-css-3-form-elements label input[type="radio"] + span,
    .imageless-css-3-form-elements label input[type="checkbox"] + span::before,
    .imageless-css-3-form-elements label input[type="radio"] + span::before
    {
        vertical-align: middle;
    }

    .imageless-css-3-form-elements label input[type="checkbox"],
    .imageless-css-3-form-elements label input[type="radio"]
    {
        position: absolute;
        filter: alpha(opacity=0);
        -moz-opacity: 0;
        -webkit-opacity: 0;
        opacity: 0;
    }

    .imageless-css-3-form-elements label input[type="checkbox"] + span,
    .imageless-css-3-form-elements label input[type="radio"] + span,
    .imageless-css-3-form-elements label input[type="checkbox"] + span::before,
    .imageless-css-3-form-elements label input[type="radio"] + span::before
    {
        display: inline-block;
    }

    .imageless-css-3-form-elements label input[type="checkbox"] + span,
    .imageless-css-3-form-elements label input[type="radio"] + span
    {
        font: normal 13px/14px "Segoe UI", Sans-serif;
    }

    .imageless-css-3-form-elements label input[type="checkbox"] + span::before
    {
        content: "\2714";
    }

    .imageless-css-3-form-elements label input[type="checkbox"] + span::before,
    .imageless-css-3-form-elements label input[type="radio"] + span::before
    {
        text-indent: -9999px;
        width: 12px;
        height: 12px;
        font: bold 12px/12px Garamond, "Segoe UI", Sans-serif;
        text-transform: uppercase;
        border: solid 1px #0b70cd;
        border-radius: 3px;
        box-shadow: 0 0 1px 1px #ccc;
        background: #0b70cd;
        background: -moz-linear-gradient(-45deg, #fefefe, #0b70cd);
        background: -webkit-linear-gradient(-45deg, #fefefe, #0b70cd);
        background: -o-linear-gradient(-45deg, #fefefe, #0b70cd);
        background: -ms-linear-gradient(-45deg, #fefefe, #0b70cd);
        background: linear-gradient(-45deg, #fefefe, #0b70cd);
        margin: 0 4px 0 0;
    }

    .imageless-css-3-form-elements label:hover input[type="checkbox"]:not(:disabled) + span::before,
    .imageless-css-3-form-elements label:hover input[type="radio"]:not(:disabled) + span::before
    {
        background: #0b70cd;
        background: -moz-linear-gradient(45deg, #fefefe, #0b70cd);
        background: -webkit-linear-gradient(45deg, #fefefe, #0b70cd);
        background: -o-linear-gradient(45deg, #fefefe, #0b70cd);
        background: -ms-linear-gradient(45deg, #fefefe, #0b70cd);
        background: linear-gradient(45deg, #fefefe, #0b70cd);
        box-shadow: 0 0 1px 2px #ccc;
    }

    .imageless-css-3-form-elements label input[type="checkbox"]:checked + span::before,
    .imageless-css-3-form-elements label input[type="radio"]:checked + span::before
    {
        text-indent: 2px;
        color: #fff;
        text-shadow: 0 0 2px #0b70cd;
    }

    .imageless-css-3-form-elements label input[type="radio"] + span::before
    {
        content: "\2022";
        font-size: 22px;
        -moz-border-radius: 12px;
        -webkit-border-radius: 12px;
        border-radius: 12px;
    }

    .imageless-css-3-form-elements label input[type="radio"]:checked + span::before
    {
        text-indent: 2px;
    }

    .imageless-css-3-form-elements label input[type="checkbox"]:disabled + span::before,
    .imageless-css-3-form-elements label input[type="radio"]:disabled + span::before
    {
        filter: alpha(opacity=50);
        -moz-opacity: .5;
        -webkit-opacity: .5;
        opacity: .5;
    }

    .imageless-css-3-form-elements label input[type="checkbox"]:disabled + span,
    .imageless-css-3-form-elements label input[type="radio"]:disabled + span,
    .imageless-css-3-form-elements label input[type="checkbox"]:disabled + span::before,
    .imageless-css-3-form-elements label input[type="radio"]:disabled + span::before
    {
        cursor: default;
    }
    </style>
        <h2>Imageless CSS3 Checkboxes</h2>
    <h3>Enabled</h3>
    <ul class="imageless-css-3-form-elements">
        <li><label><input type="checkbox"><span>unchecked</span></label></li>
        <li><label><input type="checkbox" checked="checked"><span>checked</span></label></li>
    </ul>
    <h3>Disabled</h3>
    <ul class="imageless-css-3-form-elements">
        <li><label><input type="checkbox" disabled="disabled"><span>unchecked</span></label></li>
        <li><label><input type="checkbox" checked="checked" disabled="disabled"><span>checked</span></label></li>
    </ul>
    <h2>Imageless CSS3 Radio Buttons</h2>
    <h3>Enabled Group</h3>
    <ul class="imageless-css-3-form-elements">
        <li><label><input type="radio" checked="checked" name="radio-button-group-0"><span>radio</span></label></li>
        <li><label><input type="radio" name="radio-button-group-0"><span>radio</span></label></li>
        <li><label><input type="radio" name="radio-button-group-0"><span>radio</span></label></li>
    </ul>
    <h3>Disabled Group</h3>
    <ul class="imageless-css-3-form-elements">
        <li><label><input type="radio" name="radio-button-group-1" disabled="disabled"><span>disabled radio</span></label></li>
        <li><label><input type="radio" checked="checked" name="radio-button-group-1" disabled="disabled"><span>disabled radio</span></label></li>
        <li><label><input type="radio" name="radio-button-group-1" disabled="disabled"><span>disabled radio</span></label></li>
    </ul>