★☆괴수대백과사전☆★

<img id='imgID' src='../images/some_image.png'>

#JS

document.getElementById('imgID').style.transform = "rotate(90deg)"

출처 : https://stackoverflow.com/questions/16794310/rotate-image-with-javascript

#jQuery

$('#imgID').css({'transform':'rotate(90deg)'})

출처 : https://okky.kr/articles/681005