Assertion: bootstrap's grid system | /r/HasProperty | responsive
Facets:
Source sentences:
text: Bootstrap is easy to get started and to create a responsive grid system.
text: Bootstrap is easy to get started and to create a responsive grid system.
text: It is an open source toolkit that provides a responsive grid system, Sass variables and mixins, prebuilt components for developing with HTML, CSS, and JS.
text: It also offers a grid system which is responsive, fluid and nestable.