Tips on customizing default Polymer CSS

Currently, the core-toolbar features an indent class that shifts the title to the right by 60px. However, material design guidelines suggest that the margin should actually be 80px (oddly enough, the number 60 is not mentioned in the documentation).

I could easily modify this in the 

bower_components/core-toolbar/core-toolbar.css
file. The issue arises when I need to transfer the project elsewhere - I would have to make the same adjustment after reinstalling via bower.

If I were to extend core-toolbar, there would also be complications with other elements like core-header-panel, which expect either a <core-toolbar> or an element with the class "core-header". It's a bit frustrating, but manageable.

What would be the most effective approach to address this situation?

csspolymerweb-componentshadow-dom

Answer №1

If you want to customize the style of core-toolbar globally, one option is to override its style using a method like shown in this example. Keep in mind that this example only includes native shadow dom support.

Alternatively, you can tailor the style for a specific instance by removing the html /deep/ part from the code.

Another approach could be to add your own class to the content element of the toolbar and apply the desired indentation to achieve the look you want.

Answer №2

One option to explore is creating a custom toolbar element using Polymer. You can achieve this by building a noscript polymer-element with your own CSS styling and incorporating a core-toolbar within it. Here's an example:

<polymer-element name="my-toolbar" noscript>
<template>
  <style>
    core-toolbar { /* xxxx */ }
  </style>
  <core-toolbar><content></content></core-toolbar>
</template>
</polymer-element>

Alternatively, you can enhance the customization by extending the core-toolbar to retain all of its attributes management functionalities.

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