padding & box-sizing

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>padding - box-sizing </title>
    <link rel="stylesheet" href="css/03_padding_box.css">
</head>
<body>
    <center><h1>padding에는 box-sizing 고려</h1></center>
    <div class="container">
        <!-- .item.box${$}*2 -->
        <div class="item box1">1</div>
        <div class="item box2">2</div>
    </div>
</body>
</html>
HTML
복사

CSS

.container {
    position: relative;
    width: 1200px;
    border: 3px dashed orange;
    text-align: center;
}

.item {
    width: 100px;
    height: 100px;
    line-height: 100px;
    border: 1px solid gray;
    background-color: #ddd;
}

.box1 {
    padding: 20px;
    box-sizing: content-box;
    /* content-box : 컨텐츠 크기만 박스의 크기로 지정 */
}

.box2 {
    padding: 20px;
    line-height: 60px;
    box-sizing: border-box;
    /* border-box : content+padding+border 를 크기로 지정 */
}
CSS
복사