Grid常用的容器与项目属性 -

<!DOCTYPE html>
<html lang="zh-CN">
<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>grid属性</title>
</head>
<body>
  <div class="container">
    <div class="item">item1</div>
  </div>
  <hr/> 
  <style>
    .container {
      display: grid;
      width: 200px;
      height: 150px;
      grid-template-columns: repeat(3, 1fr);
      grid-template-rows: repeat(3, 1fr)
    }
    .container .item {
      background-color: yellowgreen;
      grid-area: 1 /2 / span 2 / span 2;
    }
  </style>
  <div class="container1">
    <div class="item">item1</div>
    <div class="item">item2</div>
    <div class="item">item3</div>
    <div class="item">item4</div>
    <div class="item">item5</div>
    <div class="item">item6</div>
    <div class="item">item7</div>
    <div class="item">item8</div>
    <div class="item">item9</div>
    <div class="item one">item10</div>
    <div class="item one">item11</div> 
  </div>
  <hr />
  <style>
    .container1 {
      display: grid;
      width: 200px;
      height: 150px;
      grid-template-columns: repeat(3, 1fr);
      grid-template-rows: repeat(3, 1fr);
      grid-auto-flow: row;
      grid-auto-rows: 1fr;
    }
    .container1 > .item {
      background-color: seagreen;
    }
    .container1 > .item.one {
      background-color: violet;
    }
    </style>
    <div class="container2">
      <div class="item">item1</div>
      <div class="item">item2</div>
      <div class="item">item3</div>
      <div class="item">item4</div>
      <div class="item">item5</div>
      <div class="item">item6</div>
      <div class="item active">item7</div>
      <div class="item">item8</div>
      <div class="item">item9</div>
  </div>
  <hr />
  <style>
    .container2 {
      display: grid;
      width: 250px;
      height: 250px;
      background-color:khaki;
      border: 1px solid black;
      grid-template-columns: repeat(3, 70px);
      grid-template-rows: repeat(3, 70px);
      /* place-content: center; */
      /* place-content: space-between; */
      place-content: space-around;
      place-items: center;
    }
    .container2 > .item {
      background-color:aquamarine;
      width: 50px;
      height: 50px;
    }
    .container2 > .item.active {
      background-color: brown;
      place-self: end start;
    }
  </style>
    <div class="container3">
      <div class="item">item1</div>
      <div class="item">item2</div>
      <div class="item">item3</div>
      <div class="item">item4</div>
      <div class="item">item5</div>
      <div class="item">item6</div>
      <div class="item">item7</div>
      <div class="item">item8</div>
      <div class="item">item9</div>
  </div>
  <style>
    .container3 {
      display: grid;
      width: 210px;
      height: 210px;
      background-color:khaki;
      border: 1px solid black;
      grid-template-columns: repeat(3, 1fr);
      grid-template-rows: repeat(3, 1fr);
      gap: 10px;
    }
    .container3 > .item {
      background-color:aquamarine;
    }
  </style>
</body>
</html>