diff --git a/curriculum/challenges/english/01-responsive-web-design/responsive-web-design-principles/make-typography-responsive.english.md b/curriculum/challenges/english/01-responsive-web-design/responsive-web-design-principles/make-typography-responsive.english.md
index 2f43999577..465db86e28 100644
--- a/curriculum/challenges/english/01-responsive-web-design/responsive-web-design-principles/make-typography-responsive.english.md
+++ b/curriculum/challenges/english/01-responsive-web-design/responsive-web-design-principles/make-typography-responsive.english.md
@@ -10,6 +10,8 @@ videoUrl: 'https://scrimba.com/p/pzrPu4/crzN7T8'
Instead of using em
or px
to size text, you can use viewport units for responsive typography. Viewport units, like percentages, are relative units, but they are based off different items. Viewport units are relative to the viewport dimensions (width or height) of a device, and percentages are relative to the size of the parent container element.
The four different viewport units are:
vw: 10vw
would be 10% of the viewport's width.vh: 3vh
would be 3% of the viewport's height.vmin: 70vmin
would be 70% of the viewport's smaller dimension (height vs. width).vmax: 100vmax
would be 100% of the viewport's bigger dimension (height vs. width).body { width: 30vw; }
## Instructions