Answer:
CSS Frameworks are the preplanned libraries which make easy and more standard compliant web page
styling.
CSS frameworks offer different modules and tools:
- reset style-sheet
- grid especially for responsive web design
- web typography
- set of icons in sprites or icon fonts
- styling for tooltips,buttons,elements of forms
- parts of graphical user interface like acordion,tabs,slideshow or modal windows
- equaliser to create equal height content
- often used CSS helper classes(left,hide)
The frequently used CSS frameworks are:
- Bootstrap
- Foundation
- Semantic UI
- Gumby
- Ulkit
