JSFiddle - React, Tailwind, and code Playground

HTML

<div class="line1"></div>
<div class="line2"></div>
<div class="shadow1"></div>
<div class="shadow2"></div>

CSS

body {
  background: #c1c1c1;
}

.line1,
.shadow1 {
  position: absolute;
  left: 150px;
  top: 0;
  bottom: 0;
  width: 4px;
}

.line2,
.shadow2 {
  position: absolute;
  left: 0;
  top: 150px;
  right: 0;
  height: 5px;
}

.line1,
.line2 {
  background: #fff;
  z-index: 100;
}

.shadow1,
.shadow2 { 
 z-index: 50;
  box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.5);
}