<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.flex-container {
display: flex;
flex-flow: row wrap;
padding: 30px;
border: 1px dashed #666;
}
.flex-container > div {
width: 30%;
height: 70px;
margin: 5px;
border-radius: 3px;
background-color: #8ebf42;
text-align: center;
font-size: 28px;
font-weight: 700;
line-height: 70px;
color: #fff;
}
.item-one {
order: 1;
}
.item-four {
order: -1;
}
.item-five {
order: 0;
}
.item-three {
order: 2;
}
</style>