most has been said, but I want to add that the pragmatism of the language makes needed effort unpredictable. many solutions seem to be born out of the fashion

most has been said, but I want to add that the pragmatism of the language makes needed effort unpredictable. many solutions seem to be born out of the fashion of that time. an animated dropshadow is easy, styling a checkbox, it's label and making it work for rich devices is damn hard. (for the latter you need to figure out the way to associate a label with a checkbox, hide the default checkbox, draw your own to style that, somehow get the state from the hidden original checkbox and than build a very weird wrapper, that invisibly enlarges the clickable/touchable area without bursting your layout or covering another touch zone) I think medium did a whole blog post on how to get aesthetical authority over a text undergone.