使可滚动主体适合视口

Question

如何将可滚动主体放入视口中？

此表中有一个页眉和一个页脚，其中有行。它们的高度取决于内部组件。但我希望主体能够容纳其余空间，以便占据视口的整个高度。

const body = document.getElementById('body');

const createFakeData = (id) => {
  const row = document.createElement('div')
  row.innerHTML = "Row" + id;
  row.classList.add('row')
  body.appendChild(row);
}

for (let i = 0; i < 100; i++) {
  createFakeData(i);
}

.row {
  background-color: red;
  padding: 10px;
  margin: 0 0 5px 0;
}

.container {
  height: 100vh;
}

.header {
  height: 100px; /*Random value, height depends on components inside*/
  background-color: yellow;
}

.body {
  overflow-y: scroll;
  /*height: something; Height should take the remaining space so everything fits view port*/
}

.footer {
  height: 100px; /*Random value, height depends on components inside*/
  background-color: orange;
}

<div class="container">
  <div class="header">Header</div>
  <div class="body" id="body"></div>
  <div class="footer">Footer</div>
</div>

Answer 1

只需用这个替换你的 body 类的 css :

.body {
  overflow-y: scroll;
  height: calc(100vh - 200px);
}