# Core Concepts

- [Bubble vs openBuild](https://docs.openbuild.io/core-concepts/bubble-vs-openbuild.md): How is openBuild different from Bubble?
- [Responsive Design](https://docs.openbuild.io/core-concepts/responsive-design.md): One structure to create 90% of all app and websites layouts, fully responsive.
- [Repeating groups](https://docs.openbuild.io/core-concepts/responsive-design/repeating-groups.md): Anything list related
- [Advanced Responsiveness](https://docs.openbuild.io/core-concepts/responsive-design/advanced-responsiveness.md)
- [Styles](https://docs.openbuild.io/core-concepts/styles.md)
- [Typography](https://docs.openbuild.io/core-concepts/styles/typography.md)
- [Colors](https://docs.openbuild.io/core-concepts/styles/colors.md): Flexible and in-depth 9-colors token to get structured and consistent color palette.
- [Groups & Box Shadow](https://docs.openbuild.io/core-concepts/styles/groups-and-box-shadow.md)
- [Inputs](https://docs.openbuild.io/core-concepts/styles/inputs.md): All inputs elements are using two different styles in openBuild : Standard or Transparent.
- [Buttons](https://docs.openbuild.io/core-concepts/styles/buttons.md): Buttons styles are organized around size and appearance.
- [Style Variations](https://docs.openbuild.io/core-concepts/styles/style-variations.md)
- [Changing styles](https://docs.openbuild.io/core-concepts/styles/changing-styles.md)
- [Custom CSS](https://docs.openbuild.io/core-concepts/styles/custom-css.md)
- [Pages](https://docs.openbuild.io/core-concepts/pages.md)
- [index](https://docs.openbuild.io/core-concepts/pages/index.md): Landing page
- [base-menu](https://docs.openbuild.io/core-concepts/pages/base-menu.md)
- [base-top](https://docs.openbuild.io/core-concepts/pages/base-top.md)
- [base-ribbon](https://docs.openbuild.io/core-concepts/pages/base-ribbon.md)
- [base-mobile](https://docs.openbuild.io/core-concepts/pages/base-mobile.md)
- [admin](https://docs.openbuild.io/core-concepts/pages/admin.md)
- [verify](https://docs.openbuild.io/core-concepts/pages/verify.md)
- [styleguide](https://docs.openbuild.io/core-concepts/pages/styleguide.md)
- [terms](https://docs.openbuild.io/core-concepts/pages/terms.md)
- [login](https://docs.openbuild.io/core-concepts/pages/login.md)
- [reset\_pw](https://docs.openbuild.io/core-concepts/pages/reset_pw.md)
- [privacy](https://docs.openbuild.io/core-concepts/pages/privacy.md)
- [404](https://docs.openbuild.io/core-concepts/pages/404.md)
- [Menu](https://docs.openbuild.io/core-concepts/pages/menu.md)
- [Base Layouts](https://docs.openbuild.io/core-concepts/pages/base-layouts.md)


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