This is what goes on HTML:
<div class="horizontalStyle">
<div class="horizontal" style="background-color: #AE1C28"></div>
<div class="horizontal" style="background-color: #ffffff"></div>
<div class="horizontal" style="background-color: #21468B"></div>
</div>
This is what goes on CSS:
.horizontalStyle {
display: flex;
flex-direction: column;
}
.horizontal {
width: 225px;
height: 50px;
}