generate boxes as if they were the contents of the element instead. I'll send an email to the list, and we'll figure it out. stylesheet text such that it may be properly shimmed and/or injected as an You can also style the host element from outside - for example, using a type selector: You can use CSS selectors to determine when and how to style the host. It’s very convenient, as we can setup “default” component styles in its :host rule, and then easily override them in the document. So, a single stylesheet could be appended to multiple shadow roots and potentially the document as well. Let’s change that by removing the markup from our template and dropping it into our shadow root’s innerHTML. Setting dir on an ancestor (other than html) has no effect. But shadowDOM does not isolate anything about JavaScript. CSS custom properties and shadow DOM by Caleb Williams (@calebdwilliams) When used in an HTML document, your element will still inherit any styling information that applies Hooray we were able to style our shadowed elements from outside . The shadow DOM specification includes a means for allowing content from outside the shadow root to be rendered inside of our custom element. Shadow DOM may include both