CSS - scrolling for flexbox with overflowing content
In this article we would like to show how to enable scrolling for overflowing content with flexbox in CSS.

We have two simple solutions:
position: absolute
for scrolled element,min-height: 0
for parent elements of scrolled element.
In this solution we set size by stretching to avaialbe space with absolute position.
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<html>
<head>
<style>
div.container {
max-width: 300px;
height: 200px;
display: flex;
flex-direction: column;
}
div.head {
background: gray;
flex: 0;
}
div.body {
position: relative; /* <------------------------- required */
background: silver;
flex: 1;
}
div.scrolled-body {
position: absolute; /* <------------------------- required */
left: 0; top: 0; right: 0; bottom: 0; /* <------- required */
overflow-y: auto; /* <--------------------------- required */
}
</style>
</head>
<body>
<div class="container">
<div class="head">Text in header...</div>
<div class="body">
<div class="scrolled-body">
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
</div>
</div>
</div>
</body>
</html>
Parent elements should have min-height
set to 0
. Additionaly we need to use flex: 1
and overflow-y: auto
for element we want to have scrolling.
It is important to provide proper height for container. It can done by stretching container in parent element or with fixed height.
Parent element for scrolled element should have set min-height: 0
always.
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<html>
<head>
<style>
div.container {
max-width: 300px;
height: 200px;
min-height: 0; /* <------------- required */
display: flex;
flex-direction: column;
}
div.head {
background: gray;
flex: 0;
}
div.body {
background: silver;
flex: 1; /* <------------------- required */
overflow-y: auto; /* <---------- required */
}
</style>
</head>
<body>
<div class="container">
<div class="head">Text in header...</div>
<div class="body">
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
Text in body... Text in body... Text in body...
</div>
</div>
</body>
</html>
It is important to provide proper height for main container. It can done by stretching container in parent element or with fixed height.
Two parent elements for scrolled element should have set min-height: 0
always.
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<html>
<head>
<style>
div.site-container {
max-width: 400px;
height: 200px;
display: flex;
flex-direction: column;
}
div.site-head {
background: orange;
flex: 0;
}
div.site-body {
flex: 1; /* <------------------- required */
min-height: 0; /* <------------- required !!! */
display: flex;
}
div.site-menu {
background: gold;
flex: 0 100px;
}
div.page-container {
flex: 1; /* <------------------- required */
min-height: 0; /* <------------- required !!! */
display: flex;
flex-direction: column;
}
div.page-head {
background: gray;
flex: 0;
}
div.page-body {
background: silver;
flex: 1; /* <------------------- required */
overflow-y: auto; /* <---------- required !!! */
}
</style>
</head>
<body>
<div class="site-container">
<div class="site-head">
Text in site header...
</div>
<div class="site-body">
<div class="site-menu">
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
</div>
<div class="page-container">
<div class="page-head">
Text in page header...
</div>
<div class="page-body">
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
Text in page body... Text in page body....
</div>
</div>
</div>
</div>
</body>
</html>