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Grid网格布局的项目属性及php中文网实例
陈强
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项目属性

项目在单元中的对齐方式

  • place-items: 所有项目在网格单元中的对齐方式-垂直方向 水平方向
  1. /* 垂直-居上  水平-居中 */
  2. place-items: start center;
  3. /* 垂直-居中  水平-居中 */
  4. place-items: center center;
  5. /* 如果垂直和水平属性值一样可以简写 */
  6. place-items: center;
  • plce-sele: 某一个项目在网络单元中的对齐方式
  1. /* 设置某一项目的对齐方式,必须在项目上设置 */
  2.  .container .item:nth-of-type(5) {
  3. /* 垂直-居上 水平-居右 */
  4.    place-self: start end;
  5. }
  7. /* 设置某一项目在单元格或网格区域中的对齐方式 */
  8. .container .item:nth-of-type(3) {
  9.  /* 跨越两行两列垂直居下，水平居右显示 */
  10.    grid-area: span 2 / span 2;
  11.    place-self: end;
  12.  }

1.项目在网格单元中是拉伸的
2.只有项目在网络单元中存在剩余空间的时候,对齐才有必要且有意义

项目在容器中的对齐方式

  • 将项目在网格容器中看做一个整体的对齐方式
  1.  /* 所有项目在垂直居下，水平居右显示 */
  2. place-content: end end;
  • 将项目看到独立个体的对齐方式
  1. /* 所有项目在垂直上下两端居中，水平左右两端对齐居中显示 */
  2. place-content: space-between space-between;

php中文网案例

  • html代码
  1. <!DOCTYPE html>
  2. <html lang="en">
  3.   <head>
  4.     <meta charset="UTF-8" />
  5.     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  6.     <title>Document</title>
  7.     <link rel="stylesheet" href="css/style.css" />
  8.   </head>
  9.   <body>
  10.     <header>
  11.       <div class="logo">
  12.         <a href="/"><img src="https://www.php.cn/static/images/logo.png" alt="" /></a>
  13.       </div>
  14.       <div class="nav">
  15.         <ul>
  16.           <li><a href="#">首页</a></li>
  17.           <li><a href="#">视频教程</a></li>
  18.           <li><a href="#">入门教程</a></li>
  19.           <li><a href="#">社区问答</a></li>
  20.           <li><a href="#">技术文章</a></li>
  21.           <li><a href="#">资源下载</a></li>
  22.           <li><a href="#">编程词典</a></li>
  23.           <li><a href="#">工具下载</a></li>
  24.           <li><a href="#">php培训</a></li>
  25.         </ul>
  26.       </div>
  27.       <div class="login">
  28.         <div class="voice">
  29.           <img src="" alt="" />
  30.         </div>
  31.         <div class="user">
  32.           <img src="https://img.php.cn/upload/avatar/000/000/001/153c595e8fe1b269ec2b40414760a424.jpg" alt="" />
  33.         </div>
  34.       </div>
  35.     </header>
  36.     <main>
  37.         <ul class="aside-left">
  38.           <li><a href="">php开发</a><i></i></li>
  39.           <li><a href="">前端开发</a><i></i></li>
  40.           <li><a href="">服务端开发</a><i></i></li>
  41.           <li><a href="">移动开发</a><i></i></li>
  42.           <li><a href="">数据库</a><i></i></li>
  43.           <li><a href="">服务器运维</a><i></i></li>
  44.           <li><a href="">在线工具箱</a><i></i></li>
  45.           <li><a href="">常用库类</a><i></i></li>
  46.         </ul>
  47.         <ul class="top">
  48.           <li><a href="">php头条</a></li>
  49.           <li><a href="">独孤九剑</a></li>
  50.           <li><a href="">学习路线</a></li>
  51.           <li><a href="">在线工具</a></li>
  52.           <li><a href="">趣味课堂</a></li>
  53.           <li><a href="">社区问答</a></li>
  54.           <li><a href="">课程直播</a></li>
  55.           <li><input type="text" placeholder="输入关键词搜索" /></li>
  56.         </ul>
  57.       </div>
  58.       <div class="silder">
  59.         <a href="">
  60.           <img src="https://img.php.cn/upload/article/000/000/001/5fb478a8e82cb116.jpg" alt="" />
  61.         </a>
  62.       </div>
  63.         <ul class="show">
  64.           <li>
  65.             <a href="">
  66.               <img src="https://www.php.cn/static/images/index_yunv.jpg" alt="" />
  67.             </a>
  68.           </li>
  69.           <li>
  70.             <a href="">
  71.               <img src="https://www.php.cn/static/images/index_php_item2_.png?1" alt="" />
  72.             </a>
  73.           </li>
  74.           <li>
  75.             <a href="">
  76.               <img src="https://www.php.cn/static/images/index_php_item3.jpg?1" alt="" />
  77.             </a>
  78.           </li>
  79.           <li>
  80.             <a href="">
  81.               <img src="https://www.php.cn/static/images/index_php_new4.jpg?1" alt="" />
  82.             </a>
  83.           </li>
  84.         </ul>
  85.     </main>
  86.     <footer></footer>
  87.   </body>
  88. </html>
  • css样式表
  1. * {
  2.   margin: 0;
  3.   padding: 0;
  4.   box-sizing: border-box;
  5. }
  6. a {
  7.   color: #333;
  8.   text-decoration: none;
  9.   display: block;
  10. }
  11. img {
  12.   width: 100%;
  13. }
  14. ul li {
  15.   list-style: none;
  16. }
  17. body {
  18.   background-color: #f3f5f7;
  19.   font: 14px Helvetica Neue, Helvetica, PingFang SC, \5fae\8f6f\96c5\9ed1, Tahoma, Arial, sans-serif;
  20. }
  21. header {
  22.   display: grid;
  23.   grid-template-columns: 1fr 9fr 1fr;
  24.   background-color: #000;
  25. }
  26. header .nav {
  27.   display: grid;
  28. }
  29. header .logo {
  30.   width: 8em;
  31. }
  32. header .nav ul {
  33.   display: grid;
  34.   grid-template-columns: repeat(10, 1fr);
  35.   place-items: center;
  36.   gap: 1em;
  37. }
  38. header .nav a {
  39.   color: #fff;
  40. }
  41. header .login {
  42.   display: grid;
  43.   grid-template-columns: 1fr 1fr;
  44.   place-items: center;
  45. }
  46. header .login .user {
  47.   height: 2em;
  48.   width: 2em;
  49.   border-radius: 100%;
  50.   overflow: hidden;
  51. }
  52. main {
  53.   display: grid;
  54.   grid-template-columns: 15em 1fr;
  55.   grid-template-rows: 4em 1fr 8em;
  56.   max-width: 80vw;
  57.   margin: 0 auto;
  58.   margin-top: 2em;
  59. }
  60. main .aside-left {
  61.   grid-area: span 3;
  62.   background-color: #2b333b;
  63. }
  64. main .aside-left {
  65.   padding-left: 2em;
  66. }
  67. main .aside-left li {
  68.   display: grid;
  69.   grid-template-columns: 4fr 1fr;
  70.   height: 64px;
  71.   line-height: 64px;
  72. }
  73. .aside-left i::after {
  74.   content: " ";
  75.   display: inline-block;
  76.   height: 0.6em; /*height、width控制箭头大小*/
  77.   width: 0.6em;
  78.   border-width: 2px 2px 0 0;
  79.   border-color: #999;
  80.   border-style: solid;
  81.   -webkit-transform: matrix(-0.71, 0.71, 0.71, 0.71, 0, 0);
  82.   /*前面四个参数控制箭头方向 最后两个参数分别控制距离左侧的距离 距离上侧的距离*/
  83.   transform: matrix(0.71, -0.71, -0.71, -0.71, 6, 1);
  84. }
  85. main .aside-left a {
  86.   color: #999;
  87. }
  88. main .top {
  89.   display: grid;
  90.   place-items: center start;
  91.   background-color: #fff;
  92.   padding-left: 1em;
  93. }
  94. main .top {
  95.   display: grid;
  96.   grid-template-columns: repeat(7, 5em) 1fr;
  97.   gap: 1em;
  98. }
  99. main .show {
  100.   background-color: #fff;
  101. }
  102. main .show {
  103.   display: grid;
  104.   grid-template-columns: repeat(4, 1fr);
  105.   gap: 1em;
  106.   place-items: center;
  107. }
  108. main .show img {
  109.   border-radius: 0.5em;
  110. }
  • 效果截图

Correcting teacher：天蓬老师天蓬老师

Correction status：qualified

Teacher's comments：有空可看看更多属性介绍(mdn)
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