Fluid font-size

This Sass mixin doesn't create just viewport-based font-sizes. The ratio between small font-sizes and large font-sizes is smaller at a smaller window width. So you don't have problems with line-breaks at large headlines on mobile devices.

Usage

After installing with npm install fluid-font-size you can import it.

@import "node_modules/fluid-font-size/fluid-font-size.scss";
 
.foo {
  @include fluid-font-size(20px);
}

This will create something like:

.foo {
  font-size: 20px;
  font-size: calc(15.06173px + 0.5487vw);
  content: "viewport-units-buggyfill; font-size: calc(15.06173px + 0.5487vw)";
}

Wonder what the viewport-units-buggyfill stuff is? It's a polyfill for viewport units. So basically you'll have IE9 support with it.

Min and max font-size

Minimum and maximum font-sizes are also supported. Yay! 🎉

.foo {
  @include fluid-font-size(20px, (
    min: 15px, 
    max: 25px, 
  ));
}

Options

To change the intensity of the effect to influence the ratio between small and large font-sizes you can change the variable $fluid-font-size-ratio.

$fluid-font-size-ratio: 1;

To decrease the effect set it to an higher number than 1. To increase the effect decrease it to something between 0 and 1.