detect landscape orientation javascript code example

Example 1: screen rotation in css

@media screen and (orientation:portrait) { … }
 @media screen and (orientation:landscape) { … }

Example 2: how to get orientation in js

if (window.matchMedia("(orientation: portrait)").matches) {
   // you're in PORTRAIT mode
}

if (window.matchMedia("(orientation: landscape)").matches) {
   // you're in LANDSCAPE mode
}