<div class="container">
<div class="item"></div>
<div class="item"></div>
</div>
.container {
display: flex;
align-items: center;
justify-content: center;
height: 90vh;
width: 90vw;
border: 3px solid black;
margin: auto;
}
.item {
width: 30vw;
padding: 50px;
background: teal;
margin: 0 auto;
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.