Typolino – LESS / Responsive Helper

I like LESS. It is simple and has some cool features. I usually try to follow BEM when it comes to define classes and styles – but mixins are great.
To extend the responsive functionality I created a set of media query helpers that can be added to any class:

.sm(@rules) {
  @media only screen and (max-width: 40em) {
    @rules();
  }
}

.md(@rules) {
  @media only screen and (min-width: 40.063em) {
    @rules();
  }
}

.lg(@rules) {
  @media only screen and (min-width: 64.063em) {
    @rules();
  }
}

.xl(@rules) {
  @media only screen and (min-width: 90.063em) {
    @rules();
  }
}

The widths match the PrimeNG grid, I just took the values from there. Now we can just add special rules for each media query.

body {
  background-color: #202040;
  color: white;
  text-transform: uppercase;
  font-family: "Baloo Paaji 2", cursive;
  font-family: "Roboto", sans-serif;
  letter-spacing: 0.5rem;
  word-spacing: 1rem;
  padding-left: 10%;
  padding-right: 10%;

  .sm({
    padding-left: 0;
    padding-right: 0;
  });

  .md({
    padding-left: 10%;
    padding-right: 10%;
  });

  .lg({
    padding-left: 20%;
    padding-right: 20%;
  });
}