background-image
.jpg
.png
1024x1024
2048x2048
4096x4096
8192x8192
12288x12288
16384x16384
5432x5432
5432x4321
background-size
auto
cover
contain
100vw 100vw
100vh 100vh
100vw 100vh
100% 100%
background-position
top left
25% 25%
center center
75% 75%
bottom right
%
background-repeat
no-repeat
repeat
More info
Chromium bug 603388