src/ExamplePackage/components/CustomTableHeadCell.pcss
.component {
width: 100%;
height: 100%;
padding: rem(10);
font-size: rem(14);
border-left: rem(1) solid #AAAAAA;
border-bottom: rem(1) solid #AAAAAA;
background-color: #333333;
color: #FFFFFF;
display: flex;
align-items: center;
justify-content: left;
}