JSFiddle - React, Tailwind, and code Playground

HTML

<div class="circle"></div>
<div class="rect rect-out"></div>
<div class="rect rect-in"></div>

CSS

.circle {
  position: absolute;
  z-index: 1;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 2px solid blue;
  background: gray;
}

.rect {
  position: absolute;
  top: 50px;
  left: 200px;
  width: 200px;
  height: 80px;
}

.rect-out {
    border: 2px solid blue;
    z-index: 0;

}

.rect-in {
  z-index: 2;
  background: #555;
  margin: 2px;
  
}