Relative to the parent
Width and height utilities are generated from the
\$sizes Sass map in
\_variables.scss. Includes support for
auto by default. Modify those values as you need to generate different utilities here.
You can also use
max-width: 100%; and
max-height: 100%; utilities as needed.
Relative to the Viewport
You can also use utilities to set the width and height relative to the viewport.