Of course! Just find all the places where it says width="650" and add however much to the size you want. You'll also have to adjust the top portion to. To do that find where it says width="200" and add half the amount that you increased width="650" by.
For example if you went from width="650" to width="680" then that's 30px so the top you'd increase by 15px and width="200" would become width="215".
AND IM SORRY FOR SPAMMING YOU LIKE A MILLION TIMES OMG XD