1. creating websites and web applications responsive.
Bootstrap
 creating websites and web applications responsive.

2. Bootstrap is the most popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first web sites.
Bootstrap is completely free to download and use!

3. What is Bootstrap?
Bootstrap is a free front-end framework for faster and easier web development.
Bootstrap includes HTML and CSS based design templates for typography, forms, buttons, tables, navigation, modals, image carousels and many other, as well as optional JavaScript plug-in
Bootstrap also gives you the ability to easily create responsive designs.
Responsive web design is about creating web sites which automatically adjust themselves to look good on all devices, from small phones to large desktops.

4. Interesting, right?
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