css3实现元素环绕中心点布局

效果如图：
图片描述

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>

css3实现元素环绕中心点布局

heath_learning

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