对于根据内容变化的圆圈大小，这应该是有效的:

.numberCircle { display: inline-block; line-height: 0px; border-radius: 50%; border: 2px solid; font-size: 32px; } .numberCircle span { display: inline-block; padding-top: 50%; padding-bottom: 50%; margin-left: 8px; margin-right: 8px; } <span class="numberCircle"><span>30</span></span> <span class="numberCircle"><span>1</span></span> <span class="numberCircle"><span>5435</span></span> <span class="numberCircle"><span>2</span></span> <span class="numberCircle"><span>100</span></span>

它依赖于内容的宽度加上margin- s来确定半径，然后使用padding- s扩展高度以匹配。margin-'s需要根据字体大小进行调整。

更新以删除内部元素:

.numberCircle { display: inline-block; border-radius: 50%; border: 2px solid; font-size: 32px; } .numberCircle:before, .numberCircle:after { content: '\200B'; display: inline-block; line-height: 0px; padding-top: 50%; padding-bottom: 50%; } .numberCircle:before { padding-left: 8px; } .numberCircle:after { padding-right: 8px; } <span class="numberCircle">30</span> <span class="numberCircle">1</span> <span class="numberCircle">5435</span> <span class="numberCircle">2</span> <span class="numberCircle">100</span>

使用伪元素强制高度。垂直对齐需要零宽度空间。将line-height:0px从外层移到伪层，这样在IE8降级时至少是可见的。

最简单的方法是使用bootstrap和badge类

 <span class="badge">1</span>

我在这里的解决方案-这很容易允许不同的大小和颜色，并连接到CMS进行编辑控制。IE退化为平方。

HTML:

<div class="circular-label label-outer label-size-large label-color-pink">
    <div class="label-inner"> 
        <span>Fashion & Beauty</span>
    </div>
</div>

CSS:

.circular-label {
    overflow: hidden;
    z-index: 100;
    vertical-align: middle;
    font-size: 11px;
    -webkit-box-shadow:0 3px 3px rgba(0, 0, 0, 0.2);
    -moz-box-shadow:0 3px 3px rgba(0, 0, 0, 0.2);
    box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.2);
}
.label-inner {
    width: 85%;
    height: 85%;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
    border-radius: 50%;
    border: 2px dotted white;
    vertical-align: middle;
    margin: auto;
    top: 5%;
    position: relative;
    overflow: hidden;
}
.label-inner > span {
    display: table;
    text-align: center;
    vertical-align: middle;
    font-weight: bold;
    text-transform: uppercase;
    width: 100%;
    position: absolute;
    margin: auto;
    margin-top: 38%;
    font-family:'ProximaNovaLtSemibold';
    font-size: 13px;
    line-height: 1.0em;
}
.circular-label.label-size-large {
    width: 110px;
    height: 110px;
    -moz-border-radius: 55px;
    -webkit-border-radius: 55px;
    border-radius: 55px;
    margin-top:-55px;
}
.circular-label.label-size-med {
    width: 76px;
    height: 76px;
    -moz-border-radius: 38px;
    -webkit-border-radius: 38px;
    border-radius: 38px;
    margin-top:-38px;
}
.circular-label.label-size-med .label-inner > span {
    margin-top: 33%;
}
.circular-label.label-size-small {
    width: 66px;
    height: 66px;
    -moz-border-radius: 33px;
    -webkit-border-radius: 33px;
    border-radius: 33px;
    margin-top:-33px;
}

要知道怎么做并不难。更大的问题是，是否有可能使圆圈的尺寸与内容相匹配。

目前我认为这是不可能的。有人知道吗?

你可以使用

span.red { background: red; border-radius: 0.8em; -moz-border-radius: 0.8em; -webkit-border-radius: 0.8em; color: #ffffff; display: inline-block; font-weight: bold; line-height: 1.6em; margin-right: 15px; text-align: center; width: 1.6em; } span.grey { background: #cccccc; border-radius: 0.8em; -moz-border-radius: 0.8em; -webkit-border-radius: 0.8em; color: #fff; display: inline-block; font-weight: bold; line-height: 1.6em; margin-right: 15px; text-align: center; width: 1.6em; } span.green { background: #5EA226; border-radius: 0.8em; -moz-border-radius: 0.8em; -webkit-border-radius: 0.8em; color: #ffffff; display: inline-block; font-weight: bold; line-height: 1.6em; margin-right: 15px; text-align: center; width: 1.6em; } span.blue { background: #5178D0; border-radius: 0.8em; -moz-border-radius: 0.8em; -webkit-border-radius: 0.8em; color: #ffffff; display: inline-block; font-weight: bold; line-height: 1.6em; margin-right: 15px; text-align: center; width: 1.6em; } span.pink { background: #EF0BD8; border-radius: 0.8em; -moz-border-radius: 0.8em; -webkit-border-radius: 0.8em; color: #ffffff; display: inline-block; font-weight: bold; line-height: 1.6em; margin-right: 15px; text-align: center; width: 1.6em; } <h1><span class="grey">1</span>A grey circle with number inside</h1> <h1><span class="red">2</span>A red circle with number inside</h1> <h1><span class="blue">3</span>A blue circle with number inside</h1> <h1><span class="green">4</span>A green circle with number inside</h1> <h1><span class="pink">5</span>A pink circle with number inside</h1>

感谢https://wpsites.net/web-design/colored-numbered-circles-using-pure-css-html/

这个版本不依赖于硬编码的固定值，而是相对于div的字体大小。

http://jsfiddle.net/qod1vstv/

CSS:

.numberCircle {
    font: 32px Arial, sans-serif;

    width: 2em;
    height: 2em;
    box-sizing: initial;

    background: #fff;
    border: 0.1em solid #666;
    color: #666;
    text-align: center;
    border-radius: 50%;    

    line-height: 2em;
    box-sizing: content-box;   
}

HTML:

<div class="numberCircle">30</div>
<div class="numberCircle" style="font-size: 60px">1</div>
<div class="numberCircle" style="font-size: 12px">2</div>

如果是20或更低，你可以直接使用unicode字符①②…⑳

http://www.alanwood.net/unicode/enclosed_alphanumerics.html