三十点的答案是对的，但少了一点。你需要添加位置:相对，如果你想在圆中有居中值，还包括不同范围的数字。 例如123;

HTML:

< div级30 =“numberCircle > < / div >

CSS:

.numberCircle {    

border-radius: 50%;
behavior: url(PIE.htc); /* remove if you don't care about IE8 */
width: 36px;
height: 36px;
padding: 8px;
position: relative;
background: #fff;
border: 2px solid #666;
color: #666;
text-align: center;

font: 32px Arial, sans-serif;
}

但最简单的解决方案是使用Bootstrap

<span class="badge" style ="float:right">123</span> .

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>

The problem with most of the other answers here is you need to tweak the size of the outer container so that it is the perfect size based on the font size and number of characters to be displayed. If you are mixing 1 digit numbers and 4 digit numbers, it won't work. If the ratio between the font size and the circle size isn't perfect, you'll either end up with an oval or a small number vertically aligned at the top of a large circle. This should work fine for any amount of text and any size circle. Just set the width and line-height to the same value:

.numberCircle { 宽度:120 px; 行高:120 px; 这个特性:50%; text-align:中心; 字体大小:32像素; 边框:2px实体#666; ｝ < div class = " numberCircle " > < / div > 1 < div class = " numberCircle”> 100 < / div > < div class = " numberCircle”> 10000 < / div > < div class = " numberCircle”> 1000000 < / div >

如果您需要使内容更长或更短，您所需要做的就是调整容器的宽度以更好地适应。

在JSFiddle上可以看到。

对于0到99的数字来说，这样做是可行的:

.circle { 边框:0.1em纯灰色; 这个特性:100%; 高度:2 em; 宽:2 em; text-align:中心; ｝ .circle p { margin-top: 0.10 em; 字体大小:1.5 em; 粗细:大胆的; 字体类型:无衬线; 颜色:灰色; ｝ 身体< > < div class = "圆" > < p > < / p > 30 < / div > 身体< / >

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。

虽然迟到了，但这里有一个对我有效的自助解决方案。我使用Bootstrap 4:

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/> 身体< > <div class="行mt-4"> < div class = " col-md-12”> <span class="bg-dark text-white round -circle px-3 py-1 mx-2 h3">1</span> <span class="bg-dark text-white round -circle px-3 py-1 mx-2 h3">2</span> <span class="bg-dark text-white round -circle px-3 py-1 mx-2 h3">3</span> < / div > < / div > 身体< / >

基本上，您将bg-dark text-white圆圆px-3 py-1 mx-2 h3类添加到<span>(或其他)元素中，就完成了。

请注意，如果内容有多个数字，则可能需要调整边距和填充类。