Responsive images
Here's some HTML:
Responsive
Being responsive
Realistic layout
We want a site with a header, a sidebar, a content area, and a footer. Like this:
Here's the code for a non-responsive version.
Pancakes
Make a responsive page about pancakes.
Get carded
Make a responsive card grid.
Four dogs
Four dogs, side-by-side or stacked, depending on the screen size.