<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>javascript实现拖动层</title> <style type="text/css"> #test
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title></title> <style type="text/css"> *{margin:0;padding:0
第一种方法，className：function fun1(){ var test=document.getElementById("test"); test.className+=" red";}第二种方法，.css()：function fun2(){ $("#test").css("background","red
<script type="text/javascript"> // <
