More often than not it's a variation of b) not involving custom attrs (a matter of taste). It's the same kind of contracts you have to set up if you are also doing some heavy JS anyway.
Sometimes the design is forced upon the team (eg corporate intranet) and then one has to resort to ugly and brittle selectors but still I prefer that to slicing and dicing the design to add loops and conditionals – especially when the intranet's corporate branding change every 9 months :-/
Sometimes the design is forced upon the team (eg corporate intranet) and then one has to resort to ugly and brittle selectors but still I prefer that to slicing and dicing the design to add loops and conditionals – especially when the intranet's corporate branding change every 9 months :-/
(Thanks for rewording your reply)