How to use css to achieve a ring effect

There are many ways to achieve the ring effect in css. Here are five methods to share with you:

(Recommended tutorial: CSS Tutorial）

First of all, let’s take a look at the implementation effect:

Next, I will introduce the method:

1. Two tags Nesting

<div class="element1">
    <div class="child1"></div>
</div>

.element1{
            width: 200px;
            height: 200px;
            background-color: lightpink;
            border-radius: 50%;
        }
        .child1{
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background-color: #009966;
            position: relative;
            top: 50px;
            left: 50px;
        }

2. Use pseudo elements, before/after

<div class="element2"></div>

.element2{
            width: 200px;
            height: 200px;
            background-color: lightpink;
            border-radius: 50%;
        }
        .element2:after{
            content: "";
            display: block;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background-color: #009966;
            position: relative;
            top: 50px;
            left: 50px;
        }

3. Use border:

<div class="element3"></div>

 .element3{
            width: 100px;
            height: 100px;
            background-color: #009966;
            border-radius: 50%;
            border: 50px solid lightpink ;
        }

(Learning video recommendation: css video tutorial）

4. Use border-shadow

<div class="element4"></div>

.element4{
            width: 100px;
            height: 100px;
            background-color: #009966;
            border-radius: 50%;
            box-shadow: 0 0 0 50px lightpink ;
            margin: auto;
        }

<div class="element5">

  .element5{
            width: 200px;
            height: 200px;
            background-color: #009966;
            border-radius: 50%;
            box-shadow: 0 0 0 50px lightpink inset;
            margin: auto;
        }

5. Use radial-gradient

<div class="element6"></div>

.element6{
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: -webkit-radial-gradient( circle closest-side,#009966 50%,lightpink 50%);
        }

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