<!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: 0; /* Safari 6.1+ */
-webkit-flex-shrink: 0; /* Safari 6.1+ */
-webkit-flex-basis: 40px; /* Safari 6.1+ */
flex-grow: 0;
flex-shrink: 0;
flex-basis: 40px;
}
</style>
</head>
<body>
<div id="main">
<div style="background-color:coral;">Red DIV</div>
<div style="background-color:lightblue;" id="myBlueDiv">Blue DIV</div>
</div>
<p>Click the "Try it" button to set the value of the flexBasis property to "200px" for the blue div element</p>
<button onclick="myFunction()">Try it</button>
<p><b>Note:</b> Internet Explorer 10 and earlier versions earlier versions do not support the flexBasis property.</p>
<p><b>Note:</b> Safari 6.1 (and newer) supports an alternative, the WebkitFlexBasis property.</p>
<script>
function myFunction() {
document.getElementById("myBlueDiv").style.WebkitFlexBasis = "200px"; // Safari 6.1+
document.getElementById("myBlueDiv").style.flexBasis = "200px";
}
</script>
</body>
</html>