Duplicate values

[dmitrykiselyov]

Great mixins, thanks!

Issue:

.margin(10px, 10px);

duplicate values:

margin: 10px 10px;
margin: 1rem 10px;
margin: 10px 1rem;
margin: 1rem 1rem;

whith padding(10px, 10px) same issue

Solution: add condition not

.margin(@vertical, @horizontal) 
when (ispixel(@vertical)) and not (ispixel(@horizontal)){
    @rem-value: ~`pxtorem('@{vertical}')`;
    .margin(@rem-value, @horizontal);
}
.margin(@vertical, @horizontal) 
when (ispixel(@horizontal)) and not (ispixel(@vertical)){
    @rem-value: ~`pxtorem('@{horizontal}')`;
    .margin(@vertical, @rem-value);
}

same for padding

but it would be better to implement solution from Anton Syuvaev