<!DOCTYPE html>
<html>
<head>
<style>
#main {
width: 350px;
height: 100px;
border: 1px solid #c3c3c3;
display: -webkit-flex; /* Safari */
display: flex;
}
#main div {
-webkit-flex-grow: 1; /* Safari 6.1+ */
-webkit-flex-shrink: 1; /* Safari 6.1+ */
-webkit-flex-basis: 100px; /* Safari 6.1+ */
flex-grow: 1;
flex-shrink: 1;
flex-basis: 100px;
}
#main div:nth-of-type(2) {
-webkit-flex-shrink: 3; /* Safari 6.1+ */
flex-shrink: 3;
}
</style>
</head>
<body>
<div id="main">
<div style="background-color:coral;"></div>
<div style="background-color:lightblue;"></div>
<div style="background-color:khaki;"></div>
<div style="background-color:pink;"></div>
<div style="background-color:lightgrey;"></div>
</div>
<p><b>Note:</b> Internet Explorer 10 and earlier versions do not support the flex-shrink property.</p>
<p><b>Note:</b> Safari 6.1 (and newer) supports an alternative, the -webkit-flex-shrink property.</p>
</body>
</html>