# CSS Class and Style Sheet

index.html

<html>

<head>
    <title>box</title>
    <link rel="stylesheet" href="style.css">
</head>

<body>
    <div class="box">

    </div>
    <div class="box">
        <h1>Hello</h1>
    </div>
    <div class="box circle">

    </div>

</body>

</html>

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style.css

.box {
    width: 100px;
    height: 100px;
    background-color: yellow;
}

.circle {
    border-radius: 50%;
}

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