Javascript examples for Browser Object Model:Window getComputedStyle
Get element style via return value from getComputedStyle
<html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style id="compiled-css" type="text/css"> .overlay{/*from w w w. ja v a 2 s . c om*/ width: 100px; height: 200px; background-color:red; } </style> <script type="text/javascript"> window.onload=function(){ var computedStyle = getComputedStyle(document.getElementsByClassName("overlay")[0], null) console.log(computedStyle.width); } </script> </head> <body> <div class="overlay"> fdsfsd </div> </body> </html>