중간 컨텐츠 스크롤 만들기(flex 사용)

[shldhee]

https://stackoverflow.com/questions/4069734/fixed-header-footer-with-scrollable-content

HTML

<div class="container">
    <header><h1>Header</h1></header>
    <div class="body">Body</div>
    <footer><h3>Footer</h3></footer>
</div>
CSS

.container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
}

header {
    flex-shrink: 0;
}
.body{
    flex-grow: 1;
    overflow: auto;
    min-height: 2em;
}
footer{
    flex-shrink: 0;
}