Barebones overflow functionality is provided for two values by default, and they are not responsive.
This is an example of using .overflow-auto on an element with set width and height dimensions. By design, this content will vertically scroll.
This is an example of using .overflow-hidden on an element with set width and height dimensions.
<div class="overflow-auto">...</div>
<div class="overflow-hidden">...</div>
Using Sass variables, you may customize the overflow utilities by changing the \$overflows variable in _variables.scss.