One of the key benefits to using Sass is the ability to calculate values dynamically – I don’t just mean by using something like percentage values, but working out values using operators such as addition or subtraction.
Yes, you read correctly – using math! Now, before you run for the hills, this isn’t as crazy as it may seem: we can already write statements such as font: 10px/8px; in our code. As Sass is an extension of CSS, Sass not only supports this, but takes it to a whole new level. The great thing about this though is that the math involved does not have to be complicated ...