.ns-icon {
    position: relative;
    top: -3px;
    margin: 0 0.5rem;

    &.ns-icon-xs {
        width: 0.8rem;
    }    
    
    &.ns-icon-sm {
        width: 1.5rem;
        margin: 0 0.25rem;
    }

    &.ns-icon-md {
        width: 2rem;
    }
    
    &.ns-icon-lg {
        width: 5rem;
    }
}