Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialShung Chen
6,526 Pointswhy do we need to create a <div class="container"> inside <header class="main-header"> </header>
why do we need to create a <div class="container"> inside <header class="main-header"> </header>
instead, why don't we just add another class and make it like <header class = "main-header container">
Also, is there any concerns if we do not put a class on header, but simply select header in css?
1 Answer
Rune Andreas Nielsen
5,354 PointsHi Shung,
It's a good question and you're right that it gives the same output in the browser. The best reason I can give you is that it semantically makes more sense to create a new div with the class of container and it can enable you to create a better-structured HTML page that is easier for other people to read and maintain.
// Rune
Shung Chen
6,526 PointsShung Chen
6,526 Pointswhich comes in another question... why are we putting a class in header, but not simply selecting the header on CSS to apply changes we want
Rune Andreas Nielsen
5,354 PointsRune Andreas Nielsen
5,354 PointsThe reason is that it allows us to reuse the CSS class we made for the header on other HTML elements. Code reuse usually makes the code more readable and easier to maintain.