Issue #168 fixed Javscript and HTML

[Ainsley2000]

The error was caused by the timings of the animation.
If a user clicked on an answer before the animation ended, the glitch was encountered.
Hence on reducing the animation time, the glitch could be bypassed.
Issue #168, #167

[Ainsley2000]

Similar issues fixed
Issues #169, #165, #166, #163, #151, #147, #121, #118, #110, #108, #103, #84, #83, #78, #75