I have facing mouse hovering issue in qt 4.7.

If I open www.intel.in on 4.8 and take mouse focus on "MENU", the menu item opens. but menu does not opens on 4.7.1.

webinspector shows the below error:

XHR finished loading: "http://www.intel.in/libs/cq/i18n/dict.en.json".
homepage.html:635XML self-closing tag syntax used on <form>. The tag will not be closed.
homepage.html:725<video> is not allowed inside <div>. Content ignored.
homepage.html:726<source> is not allowed inside <div>. Content ignored.
homepage.html:727<source> is not allowed inside <div>. Content ignored.
homepage.html:728<source> is not allowed inside <div>. Content ignored.
homepage.html:729Unmatched </video> encountered. Ignoring tag.

Kindly help