理解语义化结构元素的种类与用途,实例演示

语义化结构元素的种类与用途,实例演示

效果展示：

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="css/yyhjg.css" />
    <title>理解语义化结构元素的种类与用途,实例演示</title>
  </head>
  <body>
    <!-- 页眉 -->
    <header>
      <h1>header页眉</h1>
    </header>
    <div class="container">
      <!-- 边栏 -->
      <aside><h1>aside边栏</h1></aside>
      <!-- 主体区 -->
      <main>
        <h1>main主体区</h1>
        <div>
          <section>section左</section>
          <section>section右</section>
        </div>
      </main>
    </div>
    <!-- 页脚 -->
    <footer><h1>footer页脚</h1></footer>
  </body>
</html>

css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-rows: 60px 1fr 60px;
  gap: 10px;
}
header,
footer {
  height: 80px;
  background-color: lightgreen;
  text-align: center;
}
.container {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 10px;
  padding: 10px;
  background-color: lightskyblue;
}
.container > aside {
  background-color: lightcyan;
  text-align: center;
}
.container > main {
  display: grid;
  grid-template-rows: 1fr 200px;
  background-color: wheat;
  text-align: center;
  padding: 10px;
}
.container > main > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
main div section {
  background-color: violet;
}

效果展示：

HTML

css

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