@mixin flex ($display: flex, $flow: row nowrap, $justify: flex-start, $align: flex-start) {
    display: $display;
    flex-flow: $flow;
    justify-content: $justify;
    align-items: $align;
}

@mixin absolute-el ($top, $right, $bottom, $left) {
    position: absolute;
    top: $top;
    right: $right;
    bottom: $bottom;
    left: $left;
}