IFrame to remove vertical scroll bar can still scroll

Iframe Internal page code:

<! DOCTYPE Html> <HTMLlang="en"> < Head> <Metacharset="UTF-8"> <title>title</title> <style>.Inner-container{position:Absolute;
            left:0; Overflow-x:Hidden; Overflow-y:Scroll; }/* For Chrome is only for Google browser * *.Inner-container::-webkit-scrollbar{display:None; } </style> </ Head> < Bodyclass="Inner-container"> <H1> Popcorn & Boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & Boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & Boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & Boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & Boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water popcorn & boiled water </H1> </ Body> </HTML>

External code that contains the IFRAME:

<! DOCTYPE html>  HTML  lang=  "en"  >  head  > <  Meta  charset=  UTF-8  >  title  >title</ Title  >  style  >.  Outer-container 
            {position:  relative ;
        Overflow:  hidden ; </ Style  > </ head  >  the body  >  div class=  Outer-container  >  iframe  marginwidth=  0  marginheight=  0  src=  "demo1.html"  scrolling=  "Auto"  frameborder=  0  width=  "100%"  ></ iframe  > </ div  > </ Body  > </ HTML  

Effect:

Both the horizontal and vertical scroll bars disappear, and the content can still be scrolled when scrolling the mouse.