CSS - 底部的页脚和页眉和页脚之间的内容[重复]

Question

* {
  box-sizing: border-box;
}

.wrapper {
  max-width: 1024px;
  margin: 0 auto;
  font: 1.2em Helvetica, arial, sans-serif;
}

.wrapper>* {
  border: 2px solid #f08c00;
  background-color: #ffec99;
  border-radius: 5px;
  padding: 10px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.wrapper {
  display: grid;
  grid-template-columns: repeat(12, [col-start] 1fr);
  grid-gap: 20px;
}

.wrapper>* {
  grid-column: col-start / span 12;
}

@media (min-width: 500px) {
  .side {
    grid-column: col-start / span 3;
    grid-row: 3;
  }
  .ad {
    grid-column: col-start / span 3;
    grid-row: 4;
  }
  .content,
  .main-footer {
    grid-column: col-start 4 / span 9;
  }
  nav ul {
    display: flex;
    justify-content: space-between;
  }
}

@media (min-width: 700px) {
  .main-nav {
    grid-column: col-start / span 2;
    grid-row: 2 / 4;
  }
  .content {
    grid-column: col-start 3 / span 8;
    grid-row: 2 / 4;
  }
  .side {
    grid-column: col-start 11 / span 2;
    grid-row: 2;
  }
  .ad {
    grid-column: col-start 11 / span 2;
    grid-row: 3;
  }
  .main-footer {
    grid-column: col-start / span 12;
  }
  nav ul {
    flex-direction: column;
  }
}

<!-- Learn about this code on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Realizing_common_layouts_using_CSS_Grid_Layout -->

<div class="wrapper">
  <header class="main-head">The header</header>
  <nav class="main-nav">
    <ul>
      <li><a href="">Nav 1</a></li>
      <li><a href="">Nav 2</a></li>
      <li><a href="">Nav 3</a></li>
    </ul>
  </nav>
  <article class="content">
    <h1>Main article area</h1>
    <p>In this layout, we display the areas in source order for any screen less that 500 pixels wide. We go to a two column layout, and then to a three column layout by redefining the grid, and the placement of items on the grid.</p>
  </article>
  <aside class="side">Sidebar</aside>
  <div class="ad">Advertising</div>
  <footer class="main-footer">The footer</footer>
</div>

Here's an example from mozilla doc.

如何让页脚始终停留在页面底部（无论视口如何）

如何使页眉和页脚之间的内容覆盖整个剩余区域（无论视口如何）。基本上，我如何确保 b/w 中的页眉 + 页脚 + 内容（和边距）覆盖 100% 的高度？

最后一个问题，我想用 bootstrap 来实现。是否有任何引导模板可以使用它的类来做到这一点？ （响应能力很重要）。

附言学习 html/css，因此对您的解决方案如何工作的一些解释将非常有帮助。

Answer 1

将width: 100vw; 和height: 100vh; 添加到您的包装器中，它将拉伸。我也加了

html, body{
  margin: 0;
}

因为100vw 没有考虑正文的边距，所以您必须将其设置为 0。

* {
  box-sizing: border-box;
}

html, body{
  margin: 0;
}


.wrapper {
  max-width: 1024px;
  margin: 0 auto;
  font: 1.2em Helvetica, arial, sans-serif;
  width: 100vw; 
  height: 100vh;
}

.wrapper>* {
  border: 2px solid #f08c00;
  background-color: #ffec99;
  border-radius: 5px;
  padding: 10px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.wrapper {
  display: grid;
  grid-template-columns: repeat(12, [col-start] 1fr);
  grid-template-rows: 50px auto auto 50px;
  grid-gap: 20px;
}

.wrapper>* {
  grid-column: col-start / span 12;
}

@media (min-width: 500px) {
  .side {
    grid-column: col-start / span 3;
    grid-row: 3;
  }
  .ad {
    grid-column: col-start / span 3;
    grid-row: 4;
  }
  .content,
  .main-footer {
    grid-column: col-start 4 / span 9;
  }
  nav ul {
    display: flex;
    justify-content: space-between;
  }
}

@media (min-width: 700px) {
  .main-nav {
    grid-column: col-start / span 2;
    grid-row: 2 / 4;
  }
  .content {
    grid-column: col-start 3 / span 8;
    grid-row: 2 / 4;
  }
  .side {
    grid-column: col-start 11 / span 2;
    grid-row: 2;
  }
  .ad {
    grid-column: col-start 11 / span 2;
    grid-row: 3;
  }
  .main-footer {
    grid-column: col-start / span 12;
  }
  nav ul {
    flex-direction: column;
  }
}

<div class="wrapper">
  <header class="main-head">The header</header>
  <nav class="main-nav">
    <ul>
      <li><a href="">Nav 1</a></li>
      <li><a href="">Nav 2</a></li>
      <li><a href="">Nav 3</a></li>
    </ul>
  </nav>
  <article class="content">
    <h1>Main article area</h1>
    <p>In this layout, we display the areas in source order for any screen less that 500 pixels wide. We go to a two column layout, and then to a three column layout by redefining the grid, and the placement of items on the grid.</p>
  </article>
  <aside class="side">Sidebar</aside>
  <div class="ad">Advertising</div>
  <footer class="main-footer">The footer</footer>
</div>