Is the style encapsulation provided by custom elements that do not utilize a shadow DOM equivalent to web components (autonomous custom elements) utilizing a shadow DOM?
The information on using custom elements, including examples on GitHub, from the MDN page is somewhat unclear regarding this.
Indeed, Elements created with Custom Elements but lacking shadowDOM function as regular DOM elements, such as a simple <div> or <p>.
It is only through the use of shadowRoots that CSS can be scoped (or even id attributes)
Enabling external styling through:
Each of these can stand alone without depending on the others
You are able to apply a shadowRoot to any regular DOM element:
document.querySelector("DIV").attachShadow({mode:"open"})This action does not transform them into a Custom Element, but it does create a scoped area for CSS.
Incorporate shadowDOM only when necessary. (unfortunately, many libraries enforce shadowDOM usage)
Moreover, you have complete freedom to invent any tags you desire.
<pie-chart>
<slice size="90" stroke="green">HTML</slice>
<slice size="1" stroke="red">JavaScript</slice>
<slice size="9" stroke="blue">CSS</slice>
</pie-chart>
The tag <pie-chart> represents a Web Component/Custom Element, whereas <slice> remains unclassified (and cannot be classified).
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