<!DOCTYPE html>
<style>
.four {
display: grid;
grid-template-columns: repeat(4, 1fr);
grid-template-rows: repeat(auto-fit, auto); /* 'auto' not allowed here, line should be ignored */
}
</style>
<div>
<div class="four">
<div>A</div>
<div>B</div>
<div>C</div>
<div>D</div>
<div>E</div>
</div>
</div>