预览: http://jsfiddle.net/h4qka9td/

*,*:after,*:before { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; padding: 0; margin: 0; } .switch { margin: 50px auto; position: relative; } .switch label { width: 100%; height: 100%; position: relative; display: block; } .switch input { top: 0; right: 0; bottom: 0; left: 0; opacity: 0; z-index: 100; position: absolute; width: 100%; height: 100%; cursor: pointer; } /* DEMO 3 */ .switch.demo3 { width: 180px; height: 50px; } .switch.demo3 label { display: block; width: 100%; height: 100%; background: #a5a39d; border-radius: 40px; box-shadow: inset 0 3px 8px 1px rgba(0,0,0,0.2), 0 1px 0 rgba(255,255,255,0.5); } .switch.demo3 label:after { content: ""; position: absolute; z-index: -1; top: -8px; right: -8px; bottom: -8px; left: -8px; border-radius: inherit; background: #ababab; background: -moz-linear-gradient(#f2f2f2, #ababab); background: -ms-linear-gradient(#f2f2f2, #ababab); background: -o-linear-gradient(#f2f2f2, #ababab); background: -webkit-gradient(linear, 0 0, 0 100%, from(#f2f2f2), to(#ababab)); background: -webkit-linear-gradient(#f2f2f2, #ababab); background: linear-gradient(#f2f2f2, #ababab); box-shadow: 0 0 10px rgba(0,0,0,0.3), 0 1px 1px rgba(0,0,0,0.25); } .switch.demo3 label:before { content: ""; position: absolute; z-index: -1; top: -18px; right: -18px; bottom: -18px; left: -18px; border-radius: inherit; background: #eee; background: -moz-linear-gradient(#e5e7e6, #eee); background: -ms-linear-gradient(#e5e7e6, #eee); background: -o-linear-gradient(#e5e7e6, #eee); background: -webkit-gradient(linear, 0 0, 0 100%, from(#e5e7e6), to(#eee)); background: -webkit-linear-gradient(#e5e7e6, #eee); background: linear-gradient(#e5e7e6, #eee); box-shadow: 0 1px 0 rgba(255,255,255,0.5); -webkit-filter: blur(1px); -moz-filter: blur(1px); -ms-filter: blur(1px); -o-filter: blur(1px); filter: blur(1px); } .switch.demo3 label i { display: block; height: 100%; width: 60%; border-radius: inherit; background: silver; position: absolute; z-index: 2; right: 40%; top: 0; background: #b2ac9e; background: -moz-linear-gradient(#f7f2f6, #b2ac9e); background: -ms-linear-gradient(#f7f2f6, #b2ac9e); background: -o-linear-gradient(#f7f2f6, #b2ac9e); background: -webkit-gradient(linear, 0 0, 0 100%, from(#f7f2f6), to(#b2ac9e)); background: -webkit-linear-gradient(#f7f2f6, #b2ac9e); background: linear-gradient(#f7f2f6, #b2ac9e); box-shadow: inset 0 1px 0 white, 0 0 8px rgba(0,0,0,0.3), 0 5px 5px rgba(0,0,0,0.2); } .switch.demo3 label i:after { content: ""; position: absolute; left: 15%; top: 25%; width: 70%; height: 50%; background: #d2cbc3; background: -moz-linear-gradient(#cbc7bc, #d2cbc3); background: -ms-linear-gradient(#cbc7bc, #d2cbc3); background: -o-linear-gradient(#cbc7bc, #d2cbc3); background: -webkit-gradient(linear, 0 0, 0 100%, from(#cbc7bc), to(#d2cbc3)); background: -webkit-linear-gradient(#cbc7bc, #d2cbc3); background: linear-gradient(#cbc7bc, #d2cbc3); border-radius: inherit; } .switch.demo3 label i:before { content: "off"; text-transform: uppercase; font-style: normal; font-weight: bold; color: rgba(0,0,0,0.4); text-shadow: 0 1px 0 #bcb8ae, 0 -1px 0 #97958e; font-family: Helvetica, Arial, sans-serif; font-size: 24px; position: absolute; top: 50%; margin-top: -12px; right: -50%; } .switch.demo3 input:checked ~ label { background: #9abb82; } .switch.demo3 input:checked ~ label i { right: -1%; } .switch.demo3 input:checked ~ label i:before { content: "on"; right: 115%; color: #82a06a; text-shadow: 0 1px 0 #afcb9b, 0 -1px 0 #6b8659; } <div class="switch demo3"> <input type="checkbox"> <label><i></i> </label> </div> <div class="switch demo3"> <input type="checkbox" checked> <label><i></i> </label> </div>

我的声誉有点太低，不能发表评论，但我对上面的Jack Miller的代码做了修改，以使它在你勾选和取消勾选时不改变大小。这给我带来了文本对齐问题。

input[type=checkbox] { width: 17px; -webkit-appearance: none; -moz-appearance: none; height: 17px; border: 1px solid black; } input[type=checkbox]:checked { background-color: #F58027; } input[type=checkbox]:checked:after { margin-left: 4px; margin-top: -1px; width: 4px; height: 12px; border: solid white; border-width: 0 2px 2px 0; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); transform: rotate(45deg); content: ""; display: inline-block; } input[type=checkbox]:after { margin-left: 4px; margin-top: -1px; width: 4px; height: 12px; border: solid white; border-width: 0; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); transform: rotate(45deg); content: ""; display: inline-block; } <label><input type="checkbox"> Test</label>

这应该可以

input {
  width: 25px;
  height: 25px;
}

对我来说，火狐浏览器、Chrome浏览器、iPhone的火狐浏览器、Chrome浏览器和Safari浏览器至少都是如此。

默认情况下，复选框的外观似乎是固定的。但Worthy7指出，这可以补救使用CSS外观属性。它将使复选框完全为空，因此您可以定义自己的外观。这样做的好处是:您可以使用现有的HTML代码。缺点:这是一项实验技术。Edge (legacy)和IE不使用自定义样式。

下面是需要的CSS样式:

input[type=checkbox] { width: 14mm; -webkit-appearance: none; -moz-appearance: none; height: 14mm; border: 0.1mm solid black; } input[type=checkbox]:checked { background-color: lightblue; } input[type=checkbox]:checked:after { margin-left: 4.3mm; margin-top: -0.4mm; width: 3mm; height: 10mm; border: solid white; border-width: 0 2mm 2mm 0; -webkit-transform: rotate(45deg); -moz-transform: rotate(45deg); -ms-transform: rotate(45deg); transform: rotate(45deg); content: ""; display: inline-block; } <label><input type="checkbox"> Test</label>

截图:

铬:

Firefox:

优势:

边缘(遗留):

IE:

你可以在Safari中让复选框变大——这通常是对常规方法的抵抗——使用这个属性:

源

我认为最简单的解决方案是像一些用户建议的那样重新设置复选框的样式。下面的CSS为我工作，只需要几行CSS，并回答OP问题:

input[type=checkbox] {
    -webkit-appearance: none;
    -moz-appearance: none;
    vertical-align: middle;
    width: 14px; 
    height: 14px;
    font-size: 14px;
    background-color: #eee;
}

input[type=checkbox]:checked:after {
    position: relative;
    bottom: 3px;
    left: 1px;
    color: blue;
    content: "\2713"; /* check mark */
}

正如这篇文章中提到的，缩放属性似乎在Firefox上不起作用，并且转换可能会导致不希望看到的效果。

在Chrome和Firefox上测试，应该适用于所有现代浏览器。只需根据需要更改属性(颜色、大小、底部、左侧等)。希望能有所帮助!