Get the lowdown on the key pieces of Bootstrap's infrastructure, including our approach to better, faster, stronger web development.
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>
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:
background-color: #fff;
on the body
@font-family-base
, @font-size-base
, and @line-height-base
attributes as our typographic base@link-color
and apply link underlines only on :hover
These styles can be found within scaffolding.less
.
For improved cross-browser rendering, we use Normalize.css, a project by Nicolas Gallagher and Jonathan Neal.