使用纯CSS修改复选框样式。这不需要任何JavaScript或HTML操作:

.form input[type="checkbox"]:before { display: inline-block; font: normal normal normal 14px/1 FontAwesome; font-size: inherit; text-rendering: auto; -webkit-font-smoothing: antialiased; content: "\f096"; opacity: 1 !important; margin-top: -25px; appearance: none; background: #fff; } .form input[type="checkbox"]:checked:before { content: "\f046"; } .form input[type="checkbox"] { font-size: 22px; appearance: none; -webkit-appearance: none; -moz-appearance: none; } <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" /> <form class="form"> <input type="checkbox" /> </form>

这是一个现代版本，有一点动画，和简单的样式，你可以自定义:

.checkbox {
    position: relative;
    width: 20px;
    height: 20px;
    -webkit-appearance: none;
    -moz-appearance: none;
    -o-appearance: none;
    appearance: none;
    background: transparent;
    border: 2px solid #7C7A7D;
    border-radius: 5px;
    margin: 0;
    outline: none;
    transition: 0.5s ease;
    opacity: 0.8;
    cursor: pointer;
}


.checkbox:checked {
    border-color: #7C7A7D;
    background-color: #7C7A7D;
}


.checkbox:checked:before {
   position: absolute;
   left: 2px;
   top: -4px;
   display: block;
   content: '\2713';
   text-align: center;
   color: #FFF;
   font-family: Arial;
   font-size: 14px;
   font-weight: 800;
}


.checkbox:hover {
   opacity: 1.0;
   transform: scale(1.05);
}

input[type=checkbox].css-checkbox {
    position: absolute;
    overflow: hidden;
    clip: rect(0 0 0 0);
    height: 1px;
    width: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
}

input[type=checkbox].css-checkbox + label.css-label {
    padding-left: 20px;
    height: 15px;
    display: inline-block;
    line-height: 15px;
    background-repeat: no-repeat;
    background-position: 0 0;
    font-size: 15px;
    vertical-align: middle;
    cursor: pointer;
}

input[type=checkbox].css-checkbox:checked + label.css-label {
    background-position: 0 -15px;
}

.css-label{
    background-image:url(http://csscheckbox.com/checkboxes/dark-check-green.png);
}

通过使用:after和:before伪类附带的新功能，可以实现相当酷的自定义复选框效果。这样做的好处是:您不需要向DOM添加任何其他内容，只需添加标准复选框即可。

注意，这只适用于兼容的浏览器。我相信这与一些浏览器不允许你在输入元素上设置:after和:before有关。不幸的是，目前只支持WebKit浏览器。Firefox + Internet Explorer仍然允许复选框发挥作用，只是没有样式，这在未来有望改变(代码不使用供应商前缀)。

这是一个WebKit浏览器解决方案(Chrome, Safari，移动浏览器)

参见小提琴

$(function() { $('input').change(function() { $('div').html(Math.random()); }); }); /* Main Classes */ .myinput[type="checkbox"]:before { position: relative; display: block; width: 11px; height: 11px; border: 1px solid #808080; content: ""; background: #FFF; } .myinput[type="checkbox"]:after { position: relative; display: block; left: 2px; top: -11px; width: 7px; height: 7px; border-width: 1px; border-style: solid; border-color: #B3B3B3 #dcddde #dcddde #B3B3B3; content: ""; background-image: linear-gradient(135deg, #B1B6BE 0%, #FFF 100%); background-repeat: no-repeat; background-position: center; } .myinput[type="checkbox"]:checked:after { background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAQAAABuW59YAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAIGNIUk0AAHolAACAgwAA+f8AAIDpAAB1MAAA6mAAADqYAAAXb5JfxUYAAAB2SURBVHjaAGkAlv8A3QDyAP0A/QD+Dam3W+kCAAD8APYAAgTVZaZCGwwA5wr0AvcA+Dh+7UX/x24AqK3Wg/8nt6w4/5q71wAAVP9g/7rTXf9n/+9N+AAAtpJa/zf/S//DhP8H/wAA4gzWj2P4lsf0JP0A/wADAHB0Ngka6UmKAAAAAElFTkSuQmCC'), linear-gradient(135deg, #B1B6BE 0%, #FFF 100%); } .myinput[type="checkbox"]:disabled:after { -webkit-filter: opacity(0.4); } .myinput[type="checkbox"]:not(:disabled):checked:hover:after { background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAQAAABuW59YAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAIGNIUk0AAHolAACAgwAA+f8AAIDpAAB1MAAA6mAAADqYAAAXb5JfxUYAAAB2SURBVHjaAGkAlv8A3QDyAP0A/QD+Dam3W+kCAAD8APYAAgTVZaZCGwwA5wr0AvcA+Dh+7UX/x24AqK3Wg/8nt6w4/5q71wAAVP9g/7rTXf9n/+9N+AAAtpJa/zf/S//DhP8H/wAA4gzWj2P4lsf0JP0A/wADAHB0Ngka6UmKAAAAAElFTkSuQmCC'), linear-gradient(135deg, #8BB0C2 0%, #FFF 100%); } .myinput[type="checkbox"]:not(:disabled):hover:after { background-image: linear-gradient(135deg, #8BB0C2 0%, #FFF 100%); border-color: #85A9BB #92C2DA #92C2DA #85A9BB; } .myinput[type="checkbox"]:not(:disabled):hover:before { border-color: #3D7591; } /* Large checkboxes */ .myinput.large { height: 22px; width: 22px; } .myinput.large[type="checkbox"]:before { width: 20px; height: 20px; } .myinput.large[type="checkbox"]:after { top: -20px; width: 16px; height: 16px; } /* Custom checkbox */ .myinput.large.custom[type="checkbox"]:checked:after { background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGHRFWHRBdXRob3IAbWluZWNyYWZ0aW5mby5jb23fZidLAAAAk0lEQVQ4y2P4//8/AyUYwcAD+OzN/oMwshjRBoA0Gr8+DcbIhhBlAEyz+qZZ/7WPryHNAGTNMOxpJvo/w0/uP0kGgGwGaZbrKgfTGnLc/0nyAgiDbEY2BCRGdCDCnA2yGeYVog0Aae5MV4c7Gzk6CRqAbDM2w/EaQEgzXgPQnU2SAcTYjNMAYm3GaQCxNuM0gFwMAPUKd8XyBVDcAAAAAElFTkSuQmCC'), linear-gradient(135deg, #B1B6BE 0%, #FFF 100%); } .myinput.large.custom[type="checkbox"]:not(:disabled):checked:hover:after { background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGHRFWHRBdXRob3IAbWluZWNyYWZ0aW5mby5jb23fZidLAAAAk0lEQVQ4y2P4//8/AyUYwcAD+OzN/oMwshjRBoA0Gr8+DcbIhhBlAEyz+qZZ/7WPryHNAGTNMOxpJvo/w0/uP0kGgGwGaZbrKgfTGnLc/0nyAgiDbEY2BCRGdCDCnA2yGeYVog0Aae5MV4c7Gzk6CRqAbDM2w/EaQEgzXgPQnU2SAcTYjNMAYm3GaQCxNuM0gFwMAPUKd8XyBVDcAAAAAElFTkSuQmCC'), linear-gradient(135deg, #8BB0C2 0%, #FFF 100%); } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table style="width:100%"> <tr> <td>Normal:</td> <td><input type="checkbox" /></td> <td><input type="checkbox" checked="checked" /></td> <td><input type="checkbox" disabled="disabled" /></td> <td><input type="checkbox" disabled="disabled" checked="checked" /></td> </tr> <tr> <td>Small:</td> <td><input type="checkbox" class="myinput" /></td> <td><input type="checkbox" checked="checked" class="myinput" /></td> <td><input type="checkbox" disabled="disabled" class="myinput" /></td> <td><input type="checkbox" disabled="disabled" checked="checked" class="myinput" /></td> </tr> <tr> <td>Large:</td> <td><input type="checkbox" class="myinput large" /></td> <td><input type="checkbox" checked="checked" class="myinput large" /></td> <td><input type="checkbox" disabled="disabled" class="myinput large" /></td> <td><input type="checkbox" disabled="disabled" checked="checked" class="myinput large" /></td> </tr> <tr> <td>Custom icon:</td> <td><input type="checkbox" class="myinput large custom" /></td> <td><input type="checkbox" checked="checked" class="myinput large custom" /></td> <td><input type="checkbox" disabled="disabled" class="myinput large custom" /></td> <td><input type="checkbox" disabled="disabled" checked="checked" class="myinput large custom" /></td> </tr> </table>

奖金Webkit风格的翻转开关小提琴

$(function() { var f = function() { $(this).next().text($(this).is(':checked') ? ':checked' : ':not(:checked)'); }; $('input').change(f).trigger('change'); }); body { font-family: arial; } .flipswitch { position: relative; background: white; width: 120px; height: 40px; -webkit-appearance: initial; border-radius: 3px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); outline: none; font-size: 14px; font-family: Trebuchet, Arial, sans-serif; font-weight: bold; cursor: pointer; border: 1px solid #ddd; } .flipswitch:after { position: absolute; top: 5%; display: block; line-height: 32px; width: 45%; height: 90%; background: #fff; box-sizing: border-box; text-align: center; transition: all 0.3s ease-in 0s; color: black; border: #888 1px solid; border-radius: 3px; } .flipswitch:after { left: 2%; content: "OFF"; } .flipswitch:checked:after { left: 53%; content: "ON"; } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> <h2>Webkit friendly mobile-style checkbox/flipswitch</h2> <input type="checkbox" class="flipswitch" /> &nbsp; <span></span> <br> <input type="checkbox" checked="checked" class="flipswitch" /> &nbsp; <span></span>

你可以简单地使用appearance:在现代浏览器中没有，这样就没有默认样式，所有的样式都被正确应用:

input[type=checkbox] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  display: inline-block;
  width: 2em;
  height: 2em;
  border: 1px solid gray;
  outline: none;
  vertical-align: middle;
}

input[type=checkbox]:checked {
  background-color: blue;
}

现代无障碍解决方案-使用重音颜色

使用新的重音-颜色属性，并确保满足适当的3:1对比度，以确保可访问性。这也适用于单选按钮。

.red-input { 颜色:# 9 d3039; 高度:20 px;/*不需要*/ 宽度:20 px;/*不需要*/ ｝ <input class="red-input" type="checkbox" /> <！—单选按钮示例—> <input class="red-input" type="radio" />

旧的答案，我只建议如果你需要更多的定制比上述提供:

我一直在翻看这些答案，大量的答案只是将可访问性排除在门外，并以多种方式违反WCAG。我添加了单选按钮，因为大多数情况下，当你使用自定义复选框时，你也需要自定义单选按钮。

小提琴:

复选框-纯CSS -免费的第三方库 单选按钮-纯CSS -免费的第三方库 复选框*使用FontAwesome，但可以很容易地与Glyphicons等交换

虽然迟到了，但不知何故，在2019年、2020年和2021年，这仍然很困难，所以我添加了我的三个解决方案，它们易于使用和使用。

这些都是免费的JavaScript，可访问的，和外部库免费*…

如果你想要即插即用，只要复制样式表从fiddles，编辑CSS中的颜色代码，以适应你的需要，并在你的方式。如果需要，可以为复选框添加自定义svg复选标记图标。我为那些不喜欢css的人添加了很多注释。

如果你有很长的文本或一个小的容器，并且在复选框或单选按钮输入下遇到文本换行，那么就像这样转换为div。

更详细的解释: 我需要一个解决方案，不违反WCAG，不依赖于JavaScript或外部库，不打破键盘导航，如标签或空格键选择，允许焦点事件，一个解决方案，允许禁用复选框，既选中和未选中，最后一个解决方案，我可以自定义的复选框的外观，但我想与不同的背景颜色，边界半径，svg背景等。

我结合了@Jan turoironic的回答，想出了我自己的解决方案，看起来效果不错。我已经做了一个单选按钮小提琴，使用了许多相同的代码从复选框，以使此工作与单选按钮。

我仍然在学习无障碍，所以如果我错过了一些东西，请留下评论，我会尽量纠正它。

这是我的复选框的代码示例:

input[type="checkbox"] { position: absolute; opacity: 0; z-index: -1; } /* Text color for the label */ input[type="checkbox"]+span { cursor: pointer; font: 16px sans-serif; color: black; } /* Checkbox un-checked style */ input[type="checkbox"]+span:before { content: ''; border: 1px solid grey; border-radius: 3px; display: inline-block; width: 16px; height: 16px; margin-right: 0.5em; margin-top: 0.5em; vertical-align: -2px; } /* Checked checkbox style (in this case the background is green #e7ffba, change this to change the color) */ input[type="checkbox"]:checked+span:before { /* NOTE: Replace the url with a path to an SVG of a checkmark to get a checkmark icon */ background-image: url('https://cdnjs.cloudflare.com/ajax/libs/ionicons/4.5.6/collection/build/ionicons/svg/ios-checkmark.svg'); background-repeat: no-repeat; background-position: center; /* The size of the checkmark icon, you may/may not need this */ background-size: 25px; border-radius: 2px; background-color: #e7ffba; color: white; } /* Adding a dotted border around the active tabbed-into checkbox */ input[type="checkbox"]:focus+span:before, input[type="checkbox"]:not(:disabled)+span:hover:before { /* Visible in the full-color space */ box-shadow: 0px 0px 0px 2px rgba(0, 150, 255, 1); /* Visible in Windows high-contrast themes box-shadow will be hidden in these modes and transparency will not be hidden in high-contrast thus box-shadow will not show but the outline will providing accessibility */ outline-color: transparent; /*switch to transparent*/ outline-width: 2px; outline-style: dotted; } /* Disabled checkbox styles */ input[type="checkbox"]:disabled+span { cursor: default; color: black; opacity: 0.5; } /* Styles specific to this fiddle that you do not need */ body { padding: 1em; } h1 { font-size: 18px; } <h1> NOTE: Replace the url for the background-image in CSS with a path to an SVG in your solution or CDN. This one was found from a quick google search for a checkmark icon cdn </h1> <p>You can easily change the background color, checkbox symbol, border-radius, etc.</p> <label> <input type="checkbox"> <span>Try using tab and space</span> </label> <br> <label> <input type="checkbox" checked disabled> <span>Disabled Checked Checkbox</span> </label> <br> <label> <input type="checkbox" disabled> <span>Disabled Checkbox</span> </label> <br> <label> <input type="checkbox"> <span>Normal Checkbox</span> </label> <br> <label> <input type="checkbox"> <span>Another Normal Checkbox</span> </label>