Add .active style for checkbox style filters.
Add .active style for checkbox style filters.

xuewenfei/bookyt,silvermind/bookyt,xuewenfei/bookyt,silvermind/bookyt,wtag/bookyt,silvermind/bookyt,gaapt/bookyt,wtag/bookyt,huerlisi/bookyt,gaapt/bookyt,silvermind/bookyt,hauledev/bookyt,huerlisi/bookyt,huerlisi/bookyt,gaapt/bookyt,xuewenfei/bookyt,wtag/bookyt,hauledev/bookyt,hauledev/bookyt,gaapt/bookyt,hauledev/bookyt