Tutor profile: Kae U.
Subject: HTML5 Programming
When should you use the <section> tag, vs. <div> ?
<section> tags are used to group content that is thematically related (eg you might group a bio and a contact form into different sections). <div>s have no semantic significance and are used mainly for styling.
What does the "fr" unit refer to in flexbox and grid?
The fr (or "fractional") unit is used to divide the available space between columns/rows. For example, a grid with two columns declared "1fr 1fr" will have two columns of equal width, while a grid with two columns declared "2fr 1fr" will have 1 column that takes up 2/3 of the available space, and another column that takes up 1/3.
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