如何使用 Flexbox 實現頁首、內容和頁尾 Div 之間的響應式間距？

Solving Space-Filling Div Placement between Header and Footer

In the transition from table to div-based layouts, a common hurdle arises: ensuring cohesive and responsive spacing between header, content, and footer divs. Here's a reliable approach using Flexbox:

Flexbox Solution

Flex layout empowers you to dynamically distribute space, allowing for natural header and footer heights while content seamlessly fills the remaining area. This mimics the intuitive behavior of native mobile apps, where headers and footers adhere to the viewport's top and bottom edges, leaving content scrollable within the main section.

HTML and CSS Implementation

The following code demonstrates the solution:

  <header>
    ...
  </header>
  <main>
    ...
  </main>
  <footer>
    ...
  </footer>
  

html, body {
  margin: 0;
  height: 100%;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

header,
footer {
  flex: none;
}

main {
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  flex: auto;
}

By leveraging Flexbox's flexibility, you can elegantly and responsively allocate space within your webpage, ensuring optimal user experience regardless of screen resolution.

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