Answers for "overflow when there shouldnt be html"

overflow css

/* To solve overflow issue in IE,
always use properties separately,
do not use short hand */

div {
  overflow-x: hidden;
  overflow-y: auto;
}

overflow css

overflow:
-visible: Default. The overflow is not clipped. 
The content renders outside the element's box

-hidden: The overflow is clipped, and the rest of the content 
will be invisible

-scroll: The overflow is clipped, and a scrollbar is added to 
see the rest of the content

-auto: Similar to scroll, but it adds scrollbars only when necessary