How to call css file in js of html_html/css_WEB-ITnose

html part of the file:

.....


css file
#game {
height:333px;
width:33px;
...
}

Reply to the discussion (solved Solution)

Cannot get the value in css
Get the height var game=document.getElementById("game");alert(game.offsetHeight);

Oh, that's what I mean . . . Thank you, you can get the value based on your offsetHeight.

Why is the obtained value a 333 number type instead of a 333px string?