javascript 复选框选择/全选后特效

运行效果@charset"utf-8";.contentform{margin:0;}table{border:1pxsolid#CCC;background:#E4E4E4;}td{border-top:1pxsolid#CCC;background:#FFF;font-size:12px;}th,td,.quantity{text-align:center;font-family:Arial,Helvetica,sans-serif;}.price{w