Example web site: http://51quke.com/57/1, need shielding c_main element, give a great god directly to code, small white, I don't understand write code, theory can't read

 & lt; html> 
& lt; head> 
& lt; Meta HTTP - equiv="Content - Language" Content="useful - CN" & gt; 
& lt; Meta HTTP - EQUIV="content-type" Content="text/HTML. Charset=utf-8 "& gt; 
& lt; Meta content="width=device - width, user - scalable=no" name="viewport" & gt; 
& lt; title> The trotters business registration system & lt;/title> 
& lt;/head> 
& lt; Frameset framespacing="0" border="0" rows="0" frameborder="0" & gt; 
& lt; Frame name="main" SRC="http://cn.mikecrm.com/cClNjvU" scrolling="auto" noresize> 
& lt;/frameset> 
& lt;/html>