<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
* {
box-sizing: border-box;
}
body {
background-color: #474e5d;
font-family: Helvetica, sans-serif;
}
.timeline {
position: relative;
max-width: 1200px;
margin: 0 auto;
}
.timeline::after {
content: '';
position: absolute;
width: 6px;
background-color: white;
top: 0;
bottom: 0;
left: 50%;
margin-left: -3px;
}
.container {
padding: 10px 40px;
position: relative;
background-color: inherit;
width: 50%;
}
.container::after {
content: '';
position: absolute;
width: 25px;
height: 25px;