CSS布局

前端 , , , , 评论

前言

不会写前端的程序员不是好程序员

height撑满屏幕

根据定位实现

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>fixed, absolute让撑满整个屏幕</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        div {
            width: 100%;
            height: 100%;
            background-color: yellow;
            position: fixed;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

parent设置高度

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>parent设置高度</title>
    <style>
        html,body {
            height:100%;
        }
        div {
            height: 100%;
            background-color: yellow;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

min-height设置高度

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>vh设置高度</title>
    <style>
        div {
            min-height: 100vh;
            background-color: yellow;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

flex设置高度

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>flex设置高度</title>
    <style>
        html, body {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        div {
            flex: 1;
            background-color: yellow;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

两栏布局

实现1(浮动+margin-left实现左边固定，右边自适应)

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .left {
            background-color: deepskyblue;
            width: 200px;
            height: 100px;
            float: left
        }
        .right {
            background-color: greenyellow;
            height: 200px;
            margin-left: 200px;
        }
    </style>
</head>
<body>
  <div class="wrapper">
      <div class="left"></div>
      <div class="right"></div>
  </div>
</body>
</html>

实现2(定位fixed+margin-left实现左边固定，右边自适应)

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .left {
            background-color: deepskyblue;
            width: 200px;
            height: 100px;
            position: fixed;
        }
        .right {
            background-color: greenyellow;
            height: 200px;
            margin-left: 200px;
        }
    </style>
</head>
<body>
  <div class="wrapper">
      <div class="left"></div>
      <div class="right"></div>
  </div>
</body>
</html>

实现3(利用flex)

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .wrapper {
            display: flex;
        }
        .left {
            background-color: deepskyblue;
            width: 200px;
            height: 100px;
        }
        .right {
            background-color: greenyellow;
            height: 200px;
            flex: 1;
        }
    </style>
</head>
<body>
  <div class="wrapper">
      <div class="left"></div>
      <div class="right"></div>
  </div>
</body>
</html>

实现4(float + BFC)

BFC的区域不会与浮动元素发生重叠

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .left {
            background-color: deepskyblue;
            width: 200px;
            height: 100px;
            float: left;
        }
        .right {
            background-color: greenyellow;
            height: 200px;
            overflow: hidden;
        }
    </style>
</head>
<body>
  <div class="wrapper">
      <div class="left"></div>
      <div class="right"></div>
  </div>
</body>
</html>

渐进式布局

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>基本布局</title>
    <link href="css/index.css" rel="stylesheet" />
</head>
<body>
    <div class="wrapper">
        <div class="sidebar"></div>
        <div class="content"></div>
    </div>
</body>
</html>
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*{
    margin: 0;
    padding: 0;
}
.wrapper .sidebar {
    height: 100%; /* Full-height: remove this if you want "auto" height */
    width: 160px; /* Set the width of the sidebar */
    position: fixed; /* Fixed Sidebar (stay in place on scroll) */
    z-index: 1; /* Stay on top, 2 is top of 1 */
    top: 0; /* Stay at the top */
    left: 0;
    background-color: #21EDFF; /* Black */
    overflow-x: hidden; /* Disable horizontal scroll */
    padding: 45px 0; /* up down 45px, left right 0px */
}
div .content {
    margin-left: 160px;
    background-color: #F7294A;
    width: calc(100% - 160px);
    overflow: auto; /* scroll */
}

效果图

SideBar增加菜单

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>基本布局</title>
    <link href="css/index.css" rel="stylesheet"/>
</head>
<body>
<div class="wrapper">
    <div class="sidebar">
        <div class="profile">
            <img src="https://1.bp.blogspot.com/-vhmWFWO2r8U/YLjr2A57toI/AAAAAAAACO4/0GBonlEZPmAiQW4uvkCTm5LvlJVd_-l_wCNcBGAsYHQ/s16000/team-1-2.jpg"
                 alt="profile_picture">
            <h3>樱木花道</h3>
            <p>天才</p>
        </div>
        <ul>
            <li>
                <a href="#" class="active">
                    <span class="item">主页</span>
                </a>
            </li>
            <li>
                <a href="#">
                    <span class="item">报告</span>
                </a>
            </li>
        </ul>
    </div>
    <div class="content"></div>
</div>
</body>
</html>
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*{
    margin: 0;
    padding: 0;
}
.wrapper .sidebar {
    height: 100%; /* Full-height: remove this if you want "auto" height */
    width: 160px; /* Set the width of the sidebar */
    position: fixed; /* Fixed Sidebar (stay in place on scroll) */
    z-index: 1; /* Stay on top, 2 is top of 1 */
    top: 0; /* Stay at the top */
    left: 0;
    background-color: #5A69C1; /* Black */
    overflow-x: hidden; /* Disable horizontal scroll */
    padding: 45px 0; /* up down 45px, left right 0px */
}
div .content {
    margin-left: 160px;
    background-color: #F7294A;
    width: calc(100% - 160px);
    overflow: auto; /* scroll */
}
.wrapper .sidebar .profile{
    margin-bottom: 30px;
    text-align: center;
}
.wrapper .sidebar .profile img{
    display: block;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto;
}
.wrapper .sidebar .profile h3{
    color: #ffffff;
    margin: 10px 0 5px;
}
.wrapper .sidebar .profile p{
    color: rgb(206, 240, 253);
    font-size: 14px;
}
.wrapper .sidebar ul li a{
    display: block;
    padding: 13px 30px;
    border-bottom: 1px solid #10558d;
    color: rgb(241, 237, 237);
    font-size: 16px;
    position: relative;
    text-decoration: none;
}
.wrapper .sidebar ul li a.active {
    background-color: #04AA6D;
    color: white;
}
.wrapper .sidebar ul li a:hover:not(.active) {
    background-color: #555;
    color: white;
}

效果图

标准的盒子模型

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    html, body {

      width: 100%;
      height: 100%;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    .container {
      padding: 10px;
      border: 1px solid #ccc;
    }

    .box {
      border: 1px solid #ccc;
      padding: 10px;
    }

    .name {
      width: 100%;
    }
  </style>
</head>
<body>
<div class="container">
  <div class="box">
    <input type="text" class="name">
  </div>
</div>
</body>
</html>

参考

当我遇上你

勿在浮沙筑高楼