1. selector.css(“width”,”100px”);
2. selector.css({
       “width”:”100px”,
       “height”:”100px”
   });
3. selector.css({
       ”속성”:”값”,
       ”속성”: function(){ …. return 값; }
   });
4. var styles = {
       backgroundColor : “#ddd”,
       fontWeight: “”

   };

   selector.css(styles );

1. selector.css([
   “width”, “height”, “color”, “background-color”
   ]);
2. selector.css(”color”);

연관 메소드 : .height(), .width() … 기타 등등