<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.flex-container {
display: flex;
justify-content: space-between;
height: 300px;
padding: 10px;
border: 1px dashed #666;
}
.flex-container > div {
width: 15%;
height: 80%;
margin: 5px;
border-radius: 3px;
background-color: #8ebf42;
}
div.item-two {
width: 20%;
}
div.item-three {
align-self: flex-end;
height: 80px;
margin: 0 10%;
}
</style>
</head>
<body>
<div class="flex-container">
<div class="item-one"></div>
<div class="item-two"></div>
<div class="item-three"></div>
<div class="item-four"></div>
</div>