如果你想要浮雕效果，你可以这样做:

.embossed { background: #e5e5e5; height: 100px; width: 200px; border: #FFFFFF solid 1px; outline: #d0d0d0 solid 1px; margin: 15px; } .border-radius { border-radius: 20px 20px 20px 20px; -webkit-border-radius: 20px; -moz-border-radius: 20px; -khtml-border-radius: 20px; } .outline-radius { -moz-outline-radius: 21px; } <div class="embossed"></div> <div class="embossed border-radius"></div> <div class="embossed border-radius outline-radius">-MOZ ONLY</div>

我还没有找到一个工作周围有这个工作在其他浏览器。

编辑:你能做到这一点的唯一其他方法是使用盒子阴影，但如果你已经在该元素上有一个盒子阴影，这将不起作用。

(2023年2月)

据我所知，只有Firefox和Firefox for android支持Outline半径。

-moz-outline-radius: 1 em;

通过设置outline-style: auto，我们可能很快就会看到我们的愿望

2030年见。

Chrome 94.0 +。

I tested it in chrome 94.0 and it seems that the outline property honors the border-radius now.

.outline { outline: 2px solid red; } .border { border: 2px solid red; } .outline-10 { border-radius: 10px; } .border-2 { border-radius: 2px; } .outline-2 { border-radius: 2px; } .border-10 { border-radius: 10px; } .outline-50 { border-radius: 50%; } .border-50 { border-radius: 50%; } .circle { display: inline-block; width:50px; height: 50px; } <strong>Test this in chrome 94.0+</strong> <br/><br/> border-radius: 2px <span class="outline outline-2">outline</span> <span class="border border-2">border</span> <br/><br/> border-radius: 10px <span class="outline outline-10">outline</span> <span class="border border-10">border</span> <br/><br/> border-radius: 50% <span class="outline outline-50">outline</span> <span class="border border-50">border</span> <span class="outline circle outline-50">outline</span> <span class="border circle border-50">border</span>

我想在Bootstrap导航栏中为下拉菜单提供一些不错的焦点可访问性，并且对此非常满意:

a.dropdown-toggle:专注{ 显示:inline-block; Box-shadow: 0 0 0 2px #88b8ff; border - radius: 2 px; ｝ <a href="https://stackoverflow.com" class="dropdown-toggle">访问Stackoverflow

我在制作自定义单选按钮，我发现最好的自定义方法是使用伪元素，比如:Codepen

/*CSS is compiled from SCSS*/ .product-colors { margin-bottom: 1em; display: flex; align-items: center; } .product-colors label { position: relative; width: 2.1em; height: 2.1em; margin-right: 0.8em; cursor: pointer; } .product-colors label:before { opacity: 0; width: inherit; height: inherit; padding: 2px; border: 2px solid red; border-radius: 0.2em; content: ""; position: absolute; z-index: 1; background: transparent; top: -4px; left: -4px; } .product-colors input { position: absolute; opacity: 0; width: 0; height: 0; } .product-colors input:checked + label:before, .product-colors input:focus + label:before { opacity: 1; } <div class="product-colors"> <input type="radio" name="cs" id="cs1" value="black"> <label for="cs1" style="background:black"></label> <input type="radio" name="cs" id="cs2" value="green"> <label for="cs2" style="background:green"></label> <input type="radio" name="cs" id="cs3" value="blue"> <label for="cs3" style="background:blue"></label> <input type="radio" name="cs" id="cs4" value="yellow"> <label for="cs4" style="background:yellow"></label> </div>