Hover a thumbnail at its bottom part and move the mouse horizontally to view the actual screenshots from the video
这些是代码更新过的版本。 显示所有版本
catch up with the new site layout
show correct sb for updated thumbnail
fix re-activation if didn't start on this thumb last time
dim the area only on hover
left-align preview + show progress
also show on suggestions + don't limit preview size
ignore YT:not-interested when hovering
scale the thumbnail to 200px
switch to inner API
