<div class="rect"></div>
<div class="square"></div>
<div class="circle"></div>
<style>
body {
background: #222730;
margin: 0;
}
div {
position: absolute;
}
.rect {
background: #4CAAB3;
height: 150px;
width: 400px;
margin: 75px 0;
}
.square {
background: #4CAAB3;
height: 150px;
width: 150px;
transform: rotate(45deg);
outline: 50px solid #222730;
margin: 75px 125px;
}
.circle {
background: #393E46;
width: 50px;
height: 50px;
border-radius: 50%;
margin: 125px 175px;
}
</style>