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Per the custom element specification, The element must not gain any attributes or children, as thi… Read more Attaching Shadow Dom To A Custom Element Removes Error, But Why?

I do not understand why pseudo classes like :focus-within need to be within the :host() function br… Read more Why Do Pseudoclasses On The Host Element Have To Be Inside Of The Host Function?

I don't know how to make a disqus comments code to work inside of my custom elements. Structu… Read more Disqus Comments Don't Work In A Polymer Custom Element

I'm nesting custom elements. I'd like to have my parent custom element use methods and prop… Read more How To Get A Callback When A Custom Element *and It's Children* Have Been Initialized

I am trying to create a custom table row but having difficulty getting it to behave properly. I… Read more Creating A Custom Table Row

I do not understand why pseudo classes like :focus-within need to be within the :host() function br… Read more Why Do Pseudoclasses On The Host Element Have To Be Inside Of The Host Function?

I have a bunch of custom HTML elements such ass bar-el, bar-el2, foo, foo-bar, foo-bar-2. I can do … Read more HTML5 Custom Elements Wildcard CSS Selector

If I had a script like this Read more How To Access Custom Element From Within A Linked Javascript File?