refactors most spans

code/modules/mob/mob_movement.dm

@@ -353,7 +353,7 @@
 			if(!T)
 				return
 			if(mob.check_holy(T))
-				to_chat(mob, "<span class='warning'>You cannot get past holy grounds while you are in this plane of existence!</span>")
+				to_chat(mob, span_warning("You cannot get past holy grounds while you are in this plane of existence!"))
 				return
 			else
 				mob.forceMove(get_step(mob, direct))
@@ -428,7 +428,7 @@
 
 	//Check to see if we slipped
 	if(prob(Process_Spaceslipping(5)) && !buckled)
-		to_chat(src, "<span class='notice'><B>You slipped!</B></span>")
+		to_chat(src, span_notice("<B>You slipped!</B>"))
 		inertia_dir = last_move
 		step(src, src.inertia_dir) // Not using Move for smooth glide here because this is a 'slip' so should be sudden.
 		return 0