I know I'm using an outdated version of Safari (9.1.2), and if that's the problem I'll live with it (since I can't update Safari without rendering it unusable...), but the arrangement of the quick reply is really... weird in my personal opinion. This is how it looked pre-update.

Also, is that white starburst in the left-hand corner (to indicate browsing, maybe?) really necessary, given that you also have the word 'browse' over the default icon?