CSS · Bootstrap - NC State Brand

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Overview

Get the lowdown on the key pieces of Bootstrap's infrastructure, including our approach to better, faster, stronger web development.

HTML5 doctype

Bootstrap makes use of certain HTML elements and CSS properties that require the use of the HTML5 doctype. Include it at the beginning of all your projects.

<!DOCTYPE html> <html lang="en"> ... </html>

Mobile first

With Bootstrap 2, we added optional mobile friendly styles for key aspects of the framework. With Bootstrap 3, we've rewritten the project to be mobile friendly from the start. Instead of adding on optional mobile styles, they're baked right into the core. In fact, Bootstrap is mobile first. Mobile first styles can be found throughout the entire library instead of in separate files.

To ensure proper rendering and touch zooming, add the viewport meta tag to your <head>.

<meta name="viewport" content="width=device-width, initial-scale=1">

You can disable zooming capabilities on mobile devices by adding user-scalable=no to the viewport meta tag. This disables zooming, meaning users are only able to scroll, and results in your site feeling a bit more like a native application. Overall, we don't recommend this on every site, so use caution!

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">

Bootstrap sets basic global display, typography, and link styles. Specifically, we:

  • Set background-color: #fff; on the body
  • Use the @font-family-base, @font-size-base, and @line-height-base attributes as our typographic base
  • Set the global link color via @link-color and remove link underlines only on :hover

These styles can be found within scaffolding.less.

Normalize.css

For improved cross-browser rendering, we use Normalize.css, a project by Nicolas Gallagher and Jonathan Neal.

Containers

Easily center a page's contents by wrapping its contents in a .container. Containers set width at various media query breakpoints to match our grid system.

Note that, due to padding and fixed widths, containers are not nestable by default.

<div class="container"> ... </div>

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