Mastering MEAN Web Development Expert Full Stack JavaScript (Video 8)

This video tutorial covers creating responsive, mobile-friendly websites using Bootstrap's grid layout system. It begins with identifying design issues on mobile browsers and explains how to use breakpoints to hide elements on different screen sizes. The tutorial then delves into adjusting the navbar for mobile usability and using Bootstrap's 12-column grid system for layout. Advanced CSS techniques with Sass and Bootstrap mixins are also discussed. The video concludes with a review and a preview of the next section on Angular 2.

What is a breakpoint in responsive design?

• A point where the server stops responding

• A specific screen size where layout changes

• A point where the website crashes

• A point where the user stops interacting

How can you hide the Jumbotron on small screens using Bootstrap?

• By using the class 'hidden-sm-down'

• By using the class 'hidden-lg-up'

• By using the class 'hidden-xs-up'

• By using the class 'hidden-md-down'

What class should be added to hide navigation links on mobile?

• hidden-lg-up

• hidden-xs-up

• hidden-md-down

• hidden-sm-down

How many columns does Bootstrap's grid system have?

• 12

• 6

• 8

• 10

What happens to elements with 'col-md-4' and 'col-md-8' classes at the MD breakpoint?

• They disappear

• They stack on top of each other

• They switch places

• They occupy the same row

Why might you prefer using Sass mixins over predefined Bootstrap classes?

• To reduce the number of CSS files

• To make the website load faster

• To avoid cluttering HTML with too many classes

• To make the website look more colorful

What is the advantage of using media queries with Sass in responsive design?

• They automatically generate CSS files

• They make the website load faster

• They reduce the number of HTML elements

• They allow for more precise control over styles at different breakpoints