HTML/test15.html at main · ksj2001/HTML · GitHub

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<!DOCTYPE html>
<html lang="kr">
<head>
    <meta charset="UTF-8">
    <title>Float 연습</title>
    <style>
        .parent1{
            border: 5px solid red;
            width: 600px;
            /* height: 200px; */
            overflow: hidden;
            /* inline이나 inline-block 요소는 가운데 정렬을 text-align: center로 한다. */
            text-align: center;
        }
        .child1{
            background-color: gold;
            width: 200px;
            height: 200px;
            display: inline-block;
            /* margin: auto는 block 요소만 적용된다. */
            /* margin: auto; */
        }
        .parent{
            /* 자식요소에 공통적으로 들어가는 CSS는 부모태그에서 지정한다. */
            width: 600px;
            border: 2px solid blue;
        }
        .top{
            background-color: rgba(128, 0, 128, 0.709);
            height: 100px;
        }
        .left{
            background-color: skyblue;
            width: 200px;
            height: 300px;
            float: left;
        }
        .right{
            background-color: aquamarine;
            width: 400px;
            height: 300px;
            float: right;
        }
        .clear{
            background-color: purple;
            height: 100px;
            /* clear: both는 float 상태의 왼쪽,오른쪽 속성을 해제하는 명령어 */
            clear: both;
        }
        section{
            border: 3px solid black;
            width: 650px;
            /* overflow: hidden; */
            text-align: center;
        }
        article{
            width: 200px;
            height: 100px;
            background-color: yellow;
            /* float 속성은 단 1px도 틀리면 안됨 */
            /* float: left;*/
            display: inline-block;
            border: 1px solid red;
            box-sizing: border-box;


        }
    </style>
</head>
<body>
  <div class="parent1">
    <span class="child1">
    </span>
  </div>
  <br>

    <div class="parent">
        <div class="top">float:none</div>
        <div class="left">float:left</div>
        <div class="right">float:right</div>
        <div class="clear">float:both</div>
    </div>
     <br>
    <section>
        <article>article</article>
        <article>article</article>
        <article>article</article>
    </section>

</body>
</html>