function init() { var img = document.querySelector("#kanel"); const random = Math.floor(Math.random() * 70) + 1; img.src = 'https://kanel.ovh/img/'+random+'.jpg'; const { naturalWidth, naturalHeight } = img; const isLandscape = naturalWidth / naturalHeight > 1; if (isLandscape) { img.style.width = window.innerWidth+'px'; img.style.height = 'auto'; } else { img.style.height = window.innerHeight+'px'; img.style.width = 'auto'; } if (img.src == 'https://kanel.ovh/img/70.jpg') { img.style.height = 'auto'; img.style.width = '100%'; } } init();