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93 lines
2.6 KiB
93 lines
2.6 KiB
7 years ago
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Overview
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===============================================================================
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.. lead::
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Get the lowdown on the key pieces of Bootstrap's infrastructure, including
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our approach to better, faster, stronger web development.
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HTML5 doctype
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-------------
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Bootstrap makes use of certain HTML elements and CSS properties that require
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the use of the HTML5 doctype. Include it at the beginning of all your projects.
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.. code:: html
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:class: highlight
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<!DOCTYPE html>
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<html lang="en">
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...
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</html>
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Mobile first
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-------------
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With Bootstrap 2, we added optional mobile friendly styles for key aspects of
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the framework. With Bootstrap 3, we've rewritten the project to be mobile
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friendly from the start. Instead of adding on optional mobile styles, they're
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baked right into the core. In fact, **Bootstrap is mobile first**. Mobile first
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styles can be found throughout the entire library instead of in separate files.
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To ensure proper rendering and touch zooming, **add the viewport meta tag** to
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your :code:`<head>`.
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.. code:: html
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:class: highlight
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<meta name="viewport" content="width=device-width, initial-scale=1">
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You can disable zooming capabilities on mobile devices by adding
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:code:`user-scalable=no` to the viewport meta tag. This disables zooming,
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meaning users are only able to scroll, and results in your site feeling a bit
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more like a native application. Overall, we don't recommend this on every site,
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so use caution!
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.. code:: html
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:class: highlight
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
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Typography and links
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--------------------
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Bootstrap sets basic global display, typography, and link styles. Specifically,
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we:
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* Set :code:`background-color: #fff`; on the body
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* Use the :code:`@font-family-base`, :code:`@font-size-base`, and
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:code:`@line-height-base` attributes as our typographic base
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* Set the global link color via :code:`@link-color` and apply link underlines
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only on :hover
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These styles can be found within :code:`scaffolding.less`.
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Normalize.css
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-------------
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For improved cross-browser rendering, we use `Normalize.css
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<http://necolas.github.io/normalize.css/>`_, a project by `Nicolas Gallagher
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<https://twitter.com/necolas>`_ and `Jonathan Neal <https://twitter.com/jon_neal>`_.
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Containers
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----------
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Easily center a page's contents by wrapping its contents in a
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.container. Containers set width at various media query breakpoints to match
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our grid system.
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Note that, due to padding and fixed widths, containers are not nestable by
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default.
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.. code::
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:class: highlight
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.. container::
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...
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