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html and css knowledge pillar cert Questions and Answers
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html and css knowledge pillar cert Questions and Answers For an HTML custom element, which lifecycle callback is called when the custom element is first connected to the document's DOM? connectedCallback() why is CSS considered "cascading" Because styles can fall from one style sheet to a...

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  • November 23, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • html and css knowledge pillar cert questions and a
  • for an html custom element which lifecycle callba
  • why is css considered cascading because styles c

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  • PCSS
  • PCSS

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html and css knowledge pillar cert
Questions and Answers
For an HTML custom element, which lifecycle callback is called when the custom
element is first connected to the document's DOM? - answer connected Callback()

why is CSS considered "cascading" - answer Because styles can fall from one style
sheet to another, allowing multiple style rules to be applied to the same element.

Why is HTML 5 considered more suitable for modern web development compared to its
predecessors? - answer It provides native support for multimedia elements like video
and audio

represent the main headings - answer <h1>

Given the CSS rule body { background-color: #f3f3f3; }, what is background-color? -
answer property

If a web developer wants to specify the character set for their webpage, which of the
following tags is correctly used within the <head> section? - answer <meta
charset='UTF-8'>

What is the primary role of the <head> section in an HTML document? - answer To
hold meta-information, links to stylesheets, and other non-visible data

To attach a shadow root to a custom element, you'd use which method? - answer
Element. attachShadow()

Which of the following tools is commonly used to debug CSS issues in web browsers? -
answer Browser's Developer Tools

Which HTML tag encompasses the primary content of a webpage that's visible to the
user? - answer <body>

<ul> - answer An unordered list of elements

If a button, when activated, opens a navigation menu, which ARIA attribute can be used
to notify screen reader users of its expanded or collapsed state? - answer aria-
expanded

What is the most common metric to use when applying padding to tabled data? -
answer pixels

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