A Grid Layout where parent element (div) has display: grid property set to grid. Columns are equal width, the grid container fills the screen, and the grid-items fill the space, in this case, equally.
.grid-container {
display: grid;
grid-template-columns: auto auto auto;
background-color: indianred;
}
.grid-item {
background-color: powderblue;
text-align: center;
margin: 10px;
padding: 20px;
font-size: 30px;
}
<div class="grid-container">
<div class="grid-item">1</div>
<div class="grid-item">2</div>
<div class="grid-item">3</div>
<div class="grid-item">4</div>
<div class="grid-item">5</div>
<div class="grid-item">6</div>
</div>
Columns are sized: 25%, 50%, 25%
.grid-container2 {
display: grid;
grid-template-columns: 25% 50% 25%;
background-color: indianred;
}
.grid-item {
background-color: powderblue;
text-align: center;
margin: 10px;
padding: 20px;
font-size: 30px;
}
<div class="grid-container">
<div class="grid-item">1</div>
<div class="grid-item">2</div>
<div class="grid-item">3</div>
<div class="grid-item">4</div>
<div class="grid-item">5</div>
<div class="grid-item">6</div>
</div>