CSS flex property example at PNLdev

Run
<!DOCTYPE html>
<html>
<head>
<style> 
#main {
    width: 250px;
    height: 250px;
    border: 3px solid #88c999;
    display: flex;
}
#main div {
    -ms-flex: 1;  /* IE 10 */  
    flex: 1;
}
</style>
</head>
<body>
    <h1>flex property example</h1>
    <div id="main">
    <div style="background-color:coral;">RED</div>
    <div style="background-color:lightblue;">BLUE</div>  
    <div style="background-color:lightgreen;">Green div with more content.</div>
    </div>
    <p><b>Note:</b> IE11 and newer versions support the flex property. Internet Explorer 10 supports an alternative, the -ms-flex property.</p>
</body>
</html>