What is the default size of h4 element in bootstrap.

How many different button styles can be applied using the .btn class in Bootstrap?

 Which class adds a rounded border around an element?
 

 Which of the following class will show blue text? 

Which HTML tag is used for identifying the source in Blockquotes?

Which of the following Bootstrap classes is not available for borders?

Use ________ utilities to hide elements on all devices except screen readers.

<kbd> is used to indicate what type of content?

Which of the following class in Bootstrap is used to provide a responsive fixed width container?

 Which of the following bootstrap styles are used to create a vertical pills navigation?