Fixed a bug when setting a video to a slider

【Contents of the fix】
■Fixed a bug in which videos may not autoplay when set to slider in Chrome only.
※Due to a change in Chrome’s autoplay policy, videos are now muted in order to play automatically.

The files that have been fixed for this update are as follows
【Corrected files】
footer.php
style.css

For more information, please visit the SKIN (tcd046) download site for purchasers.