Syntax
The syntax of CSS flex property is as follows −
Selector {
flex: /*value*/
}Example
The following examples illustrate CSS flex property.
<!DOCTYPE html>
<html>
<head>
<style>
div {
display: flex;
flex-direction: column;
box-shadow: inset 0 0 6px aqua;
margin: 2%;
width: 30%;
height: 15%;
}
#d2, #d3 {
margin-left: 15%;
margin-top: 5%;
box-shadow: inset 0 0 6px green!important;
}
#d4 {
box-shadow: inset 0 0 6px red!important;
margin-top: auto;
}
</style>
</head>
<body>
<div id="container">
<div id="d1">Random text here..</div>
<div id="d2">Hello!!</div>
<div id="d3">Watch this</div>
<div id="d4">Example</div>
</div>
</body>
</html>This gives the following output

Example
<!DOCTYPE html>
<html>
<head>
<style>
div {
display: flex;
flex-direction: column;
box-shadow: inset 0 0 6px red;
margin: 2%;
width: 30%;
}
#d2, #d3 {
margin-left: 15%;
border-radius: 50%;
padding: 5%;
box-shadow: inset 0 0 6px green!important;
}
#d4 {
margin-left: 50%;
margin-top: auto;
}
</style>
</head>
<body>
<div id="container">
<div id="d1"><img src="https://images.pexels.com/photos/5512653/pexels-photo-5512653.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" /></div>
<div id="d2"></div>
<div id="d3"></div>
<div id="d4"><img src="https://images.pexels.com/photos/6032874/pexels-photo-6032874.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" /></div>
</div>
</body>
</html>This gives the following output
