body,
html {
  margin: 0;
  padding: 0;
  background: var(--background);
}

body,
html {
  margin: 0;
  padding: 0;
  background: var(--background);
}

body {
  display: grid;
}

Fix styling on small screens.
[shaders] Fix styling on small screens.

Bug: skia:12756
Change-Id: I91c010271121ea9cb706261f8c158fcfbbfc5626
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/490217
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
