<html> <head> <title>CSS3 media query test: media query testing aspect-ratio feature.</title> <style type="text/css"> @media screen and (aspect-ratio:800/600) { #a { color: green } } @media screen and (min-aspect-ratio:1/1) { #b { color: green } } @media screen and (max-aspect-ratio:1/1) { #c { color: green } } @media screen and (min-aspect-ratio:16/9) { #d { color: green } } </style> </head> <body> <p id="a">This text should be green if the viewport is 800:600 ratio. This is unlikely to happen by chance, but the layout testing sets this size</p> <p id="b">This text should be green if the viewport is landscape (minimum aspect ratio of 1:1).</p> <p id="c">This text should be green if the viewport is portrait (maximum aspect ratio of 1:1).</p> <p id="d">This text should be green if the viewport aspect ratio is greater than 16:9.</p> </body> </html>