iframe-proxy | Sunbelt Computer Software

19 lines (19 loc) · 601 Bytes

<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        function chColor(){
            var arrColor = ["#ff0","#6c0","#fcf","#cf0","#39f"];
            var arrNum = Math.floor(Math.random()*arrColor.length);
            var bodyTag = document.getElementById("theBody");
            bodyTag.style.backgroundColor = arrColor[arrNum];
    </script>
<body id="theBody">
    <button onclick="chColor();">배경 색상 바꾸기</button>

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