Negative and positive values

In order to use negative values you need to use a doble dash -- to separate the values.

To add a positive value to a negative value, use the following syntax:

• Both negative: f-ml--<px>--<px>
• First positive, second negative: f-ml-<px>--<px>
• First negative, second positive: f-ml--<px>-<px>
• Both positive: f-ml-<px>-<px>

Example with margin left:

<div class="h-30 w-30 f-ml-50--25" />
<div class="h-30 w-30 f-ml--50-25" />