Vertical align without table property

u-verticalAlign.scss

.u-verticalAlign {
    &:before {
        content: '';
        display: inline-block;
        height: 100%;
        margin-right: -0.25em;
        vertical-align: middle;
    }
}
.u-verticalAlign-content {
    display: inline-block;
    vertical-align: middle;
}