flex direction
HTML
<ul class="wrapper">
<li class="cell">1</li>
<li class="cell">2</li>
<li class="cell">3</li>
<li class="cell">4</li>
</ul>
CSS
.wrapper {
display: flex;
flex-direction: column-reverse;
//flex-direction: column;
}
.cell {
outline: 1px solid red;
width: 40px;
height: 40px;
display: flex;
align-items: center;
justify-content: center;
flex-direction: row-reverse;
}