JSFiddle - React, Tailwind, and code Playground
HTML
<div id="green">
</div>
<div id="yellow_placer">
<div id="yellow">
</div>
</div>
<div id="red_placer">
<div id="red">
</div>
</div>
<div id="blue">
</div>
CSS
#red {
margin:0 auto 0;
width:406px;
height:60px;
background-color:red;
position:relative;
z-index:100;
}
#red_placer {
width:100%;
position:fixed;
top:85px;
z-index:100;
}
#green{
background-color:green;
height:100px;
width:100%;
top:0;
position:fixed;
z-index:200;
}
#blue{
margin:30px auto 0;
width:60px;
height:465px;
background-color:blue;
position:relative;
z-index:300;
}
#yellow {
margin:0px auto 0;
width:170px;
height:170px;
background-color:yellow;
position:relative;
z-index:400;
}
#yellow_placer {
width:100%;
position:fixed;
top:0;
z-index:400;
}