위 모양의 레이아웃 만들기 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>웹문서 간단실습</title>
    <style>
        div{box-sizing: border-box;border: 1px solid red;}
        .wrap{ 
            width: 1000px;
            height: 800px;
            margin: auto;
        }
        .wrap>div{
            width: 100%;
        }
        #header, #footer{
            height: 25%;
        }
        #content{
            height: 50%;
        }
        #header>div, #content>div{
            float: left;
            height: 100%;
        }
        #head-1{ width:30%;}
        #head-2{ width:70%;}
      
        #content-1{width:20%}
        #content-2{width:50%}
        #content-3{width:30%}
    </style>
</head>
<body>
    <div class="wrap">
        <div id="header">
            <div id="head-1"></div>
            <div id="head-2"></div>
        </div>
        <div id="content">
            <div id="content-1"></div>
            <div id="content-2"></div>
            <div id="content-3"></div>
        </div>   
        <div id="footer"></div>
    </div>
    
</body>
</html>
복사했습니다!