效果如图：
代码实现：
<style>
*{
margin: 0;
padding: 0;
box-sizing: border-box;
}
.surround-box,
.center-point{
position: absolute;
top: 50%;
left: 50%;
width: 20px;
height: 20px;
margin-left: -10px;
margin-top: -10px;
border-radius: 50%;
background-color: #000;
}
.circle{
/* 这里一定要绝对定位，这样位置才能铺开来 */
position: absolute;
top: -10px;
left: -10px;
width: 40px;
height: 40px;
line-height: 40px;
border-radius: 50%;
text-align: center;
color: #fff;
}
.circle1{
background-color: red;
/* rotateZ 控制方向，每个元素旋转 30 度，12 个元素刚好 360 度。translateY 控制每个元素距中心点的距离 */
transform: rotateZ(30deg) translateY(80px);
}
.circle2{
background-color: orange;
transform: rotateZ(60deg) translateY(80px);
}
.circle3{
background-color: yellow;
transform: rotateZ(90deg) translateY(80px);
}
.circle4{
background-color: green;
transform: rotateZ(120deg) translateY(80px);
}
.circle5{
background-color: seagreen;
transform: rotateZ(150deg) translateY(80px);
}
.circle6{
background-color: blue;
transform: rotateZ(180deg) translateY(80px);
}
.circle7{
background-color: purple;
transform: rotateZ(210deg) translateY(80px);
}
.circle8{
background-color: lightsalmon;
transform: rotateZ(240deg) translateY(80px);
}
.circle9{
background-color: deeppink;
transform: rotateZ(270deg) translateY(80px);
}
.circle10{
background-color: lightyellow;
transform: rotateZ(300deg) translateY(80px);
}
.circle11{
background-color: lightgreen;
transform: rotateZ(330deg) translateY(80px);
}
.circle12{
background-color: lightslategrey;
transform: rotateZ(360deg) translateY(80px);
}
</style>
<body>
<div class=”center-point”></div>
<div class=”surround-box”>
<div class=”circle circle1″>1</div>
<div class=”circle circle2″>2</div>
<div class=”circle circle3″>3</div>
<div class=”circle circle4″>4</div>
<div class=”circle circle5″>5</div>
<div class=”circle circle6″>6</div>
<div class=”circle circle7″>7</div>
<div class=”circle circle8″>8</div>
<div class=”circle circle9″>9</div>
<div class=”circle circle10″>10</div>
<div class=”circle circle11″>11</div>
<div class=”circle circle12″>12</div>
</div>
</body>