<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,target-densitydpi=high-dpi,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/> <title>javascript 获取内联样式</title> </head> <style> #box{ width:100px; height:100px; background-image:url(1.jpg); background-size:140% 140%; background-repeat:no-repeat; border:20px solid rgba(0,0,0,.3); background-clip:border-box; background-position:-20px -20px; } </style> <body> <div id="box"></div> </body> </html> <script> //获取内联样式元素 function getStyle( obj , attr ) { if ( window.getComputedStyle ) { return getComputedStyle( obj , null )[attr]; }else{ return obj.currentStyle[attr]; } } //获取对象 function $(id){ return document.getElementById(id); } var box = $('box'); //打印样式 alert(getStyle(box , 'background-position')); </script>