How to override default Polymer CSS

Tags: css,polymer,web-component,shadow-dom

Problem :

Right now core-toolbar has an indent class that indents the title to the right by 60px, while material design dictates that the margin should actually be 80px (as a matter of fact the number 60 never shows throughout the documentation).

So I could easily go and edit it in bower_components/core-toolbar/core-toolbar.css but the problem is that, once I move the project somewhere else, I'd have to make the same edit once I've done my bower installs etc..

Mind you that if I was to extend core-toolbar say, I'd have a problem with core-header-panel etc.. because it would be looking for either <core-toolbar> or something with the class "core-header" which is a bit of an annoyance, but it's something I can live with.

What's the best way to do something like this?

Solution :

One approach might be to globally override core-toolbar's style using something like Note that I've only got native shadow dom support there.

Or you could do that in a particular instance if you'd prefer & remove the html /deep/ bit.

Or you might add your own class to the element you're giving as content to the toolbar & give it the indentation you want.

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