.css( ) js中设置css样式

给p标签设置样式，多个样式时用{ }对象包裹，中间每个属性值用逗号“ ，”隔开

$('p').css({"width":"30px","height":"30px"});

$(".redPage").css({"background-image":"url(${base}/resources/shop/mobile/images/redPage/redPage.png)"});