Bootstrap 3

Get the lowdown on the key pieces of Bootstrap's infrastructure, including our approach to better, faster, stronger web development. Include it at the beginning of all your projects.

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.

Flexbox CSS In 20 Minutes

Mobile first styles can be found throughout the entire library instead of in separate files. 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!

Images in Bootstrap 3 can be made responsive-friendly via the addition of the. For improved cross-browser rendering, we use Normalizea project by Nicolas Gallagher and Jonathan Neal. Easily center a page's contents by wrapping its contents in a.

bootstrap 3

Containers set width at various media query breakpoints to match our grid system. Bootstrap includes a responsive, mobile first fluid grid system that appropriately scales up to 12 columns as the device or viewport size increases. It includes predefined classes for easy layout options, as well as powerful mixins for generating more semantic layouts. Grid systems are used for creating page layouts through a series of rows and columns that house your content.

Here's how the Bootstrap grid system works:. Folks looking to create fully fluid layouts meaning your site stretches the entire width of the viewport must wrap their grid content in a containing element with padding: 0 15px; to offset the margin: 0 px; used on.

We use the following media queries in our LESS files to create the key breakpoints in our grid system. We occasionally expand on these media queries to include a max-width to limit CSS to a narrower set of devices.

Grid classes apply to devices with screen widths greater than or equal to the breakpoint sizes, and override grid classes targeted at smaller devices. Therefore, applying any. Using a single set of. Place grid columns in any. Don't want your columns to simply stack in smaller devices? Use the extra small and medium device grid classes by adding.

See the example below for a better idea of how it all works. Build on the previous example by creating even more dynamic and powerful layouts with tablet. With the four tiers of grids available you're bound to run into issues where, at certain breakpoints, your columns don't clear quite right as one is taller than the other.

To fix that, use a combination of a. In addition to column clearing at responsive breakpoints, you may need to reset offsets, pushes, or pulls.

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Those resets are available for medium and large grid tiers only, since they start only at the second small grid tier.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.

bootstrap 3

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. This is Bootstrap 3. For Bootstrap 4 use the Bootstrap rubygem if you use Ruby, and the main repo otherwise. In your Gemfile you need to add the bootstrap-sass gem, and ensure that the sass-rails gem is present - it is added to new Rails applications by default. Make sure the file has. If you have just generated a new Rails app, it may come with a.

If this file exists, it will be served instead of Sass, so rename it:. Instead, use import to import Sass files. Bootstrap JavaScript depends on jQuery. If you're using Rails 5. The latest version of bootstrap-sass compatible with Rails 3. Sass, JS, and all other assets are located at assets. By default, bower. This is compatible by default with asset managers such as wiredep.

If you use mincer with node-sass, import Bootstrap like so:. See also this example manifest. You can also import components explicitly. In the application Sass file, replace import 'bootstrap' with:. Precision is set for Ruby automatically when using the sassc-rails gem. When using the npm or Bower version with Ruby, you can set it with:. Bootstrap requires the use of Autoprefixer. To match upstream Bootstrap's level of browser compatibilityset Autoprefixer's browsers option to:.

If you use Sprockets or Mincer, you can require bootstrap-sprockets instead to load the individual modules:. You can also load individual modules, provided you also require any dependencies. You can check dependencies in the Bootstrap JS documentation. When using bootstrap-sass with Compass, Sprockets, or Mincer, you must import the relevant path helpers before Bootstrap itself, for example:.

Import Bootstrap into a Sass file for example, application. The full list of Bootstrap variables can be found here. You can override these by simply redefining the variable before the import directive, e. Bootstrap is available as an Eyeglass module. The patch version may be ahead of the corresponding upstream minor.

This happens when we need to release Sass-specific changes. Before v3. This was changed due to Bower and npm compatibility issues. Keeping bootstrap-sass in sync with upstream changes from Bootstrap used to be an error prone and time consuming manual process. With Bootstrap 3 we have introduced a converter that automates this.With the 3rd version of the great Bootstrap out for about 4 and a half months now, people have had their time to play around with it, learn the changes, find new features, and build amazing things.

The most interesting change for me was the difference in the grid system. Bootstrap 2 catered to two different browser sizes desktop and then mobile. With Bootstrap 3, you now build with mobile in mind first, and the grid system lets you create different grid systems based on browser size.

The grid you create works on desktops and then stacks on top of each other when browser size is below px. This is limited since you can only define 1 grid on desktop sized browsers. You are left with a stacked grid on mobile devices.

The new Bootstrap grid system applies to mobile first. When you declare a specific grid size, that is the grid for that size and above.

This can be a little hard to grasp at first so here's an example. Since the grid system now cascades up from mobile devices, this is how this code will look. We don't have to define anything for extra small devices since the default is one column. We have to define a grid size for small devices, but not for medium devices.

This is because the grid cascades up. So if you define a size at smthen it will be that grid size for smmdand lg. This is the best part about the new grid system.

Free themes for Bootstrap

You could realistically have your site show a different grid on 4 different browser sizes. Below is the breakdown of the different sizes. The official Bootstrap docs offer a much more comprehensive understanding of how the grid works.

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Take a look at those to get a more solid overview of column sizes, gutter sizes, maximum column sizes, and the max-width of your overall site based on browser size.

Sometimes you will need to use media queries to get your site to act the way you'd like it to.Bootstrap has a few easy ways to quickly get started, each one appealing to a different skill level and use case. Read through to see what suits your particular needs. The fastest way to get Bootstrap is to download the precompiled and minified versions of our CSS, JavaScript, and fonts.

No documentation or original source code files are included. Download precompiled Bootstrap. Install and manage Bootstrap's styles, JavaScript, and documentation using Bower. Just use these Bootstrap CDN links. Bootstrap is downloadable in two forms, within which you'll find the following directories and files, logically grouping common resources and providing both compiled and minified variations.

Please note that all JavaScript plugins require jQuery to be included, as shown in the starter template. Consult our bower. Once downloaded, unzip the compressed folder to see the structure of the compiled Bootstrap. You'll see something like this:.

This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. Fonts from Glyphicons are included, as is the optional Bootstrap theme. More specifically, it includes the following and more:. Beyond that, any other included file provides support for packages, license information, and development. Start with this basic HTML template, or modify these examples.

We hope you'll customize our templates and examples, adapting them to suit your needs. Build on the basic template above with Bootstrap's many components. See also Customizing Bootstrap for tips on maintaining your own Bootstrap variants. Create a custom navbar with justified links. Heads up! Not too WebKit friendly. Easily disable the responsiveness of Bootstrap per our docs. Bootstrap automatically adapts your pages for various screen sizes.

bootstrap 3

Here's how to disable this feature so your page works like in this non-responsive example. You'll still need Respond. This disables the "mobile site" aspects of Bootstrap. We've applied these steps to an example. Read its source code to see the specific changes implemented. View non-responsive example.Among other features, it includes base CSS and HTML for typography, icons, forms, buttons, tables, layout grids, and navigation, along with custom-built jquery-plugins and support for responsive layouts.

Vertical align in bootstrap 3

With the introduction of ReactJS, many developers adopted it as default tool on their daily development process. That means that jQuery was and its being set a side at least for the development of very dynamic web applications. But, what has to do jQuery with Bootstrap? Well, jQuery is required to make the Bootstrap Components works right and that's the other problem, the original Bootstrap library uses the native DOM of the browser and React implements a virtual DOM.

That's why, to solve all this inconvenients and to keep the easy tradition of using Bootstrap as a basis for the UI, a React library of bootstrap was written. This library can help you to work in the React way while using the awesome and easy to use Bootstrap features.

The React Bootstrap module implements all of the Bootstrap 3 components as React components, so they can be easily embedded into your application. It doesn't depend on jQuery, so your code will be kept so clean as possible.

To install it, switch to the directory of your project with the terminal and install it executing the following command:. After the installation, you will be able to require any of the components that the original Bootstrap library has to offer. For more information about this library, please visit the official repository at Github here.

As you know, everybody create their own boostrap theme or just use a default theme. Following this simple guideline, React-Bootstrap doesn't depend on any version of Bootstrap CSS nor implements their own version of it. It's obvious that you need to add some CSS to make the Component looks good, however that is totally up to you.

Or you can use a theme from the awesome free collection of Bootstrap themes by Bootswatch like "United" that looks a lot better than the default theme of Bootstrap:. The procedure is really simple, just include a CSS file inside the head tag of your document and you're ready to go:. With this, now your components in React will look as they should. Alternatively you can configure webpack to include and transpile the SASS source files of bootstrap so you can configure and modify the styles of Bootstrap as you wish.

One of the most awesome features of Bootstrap, it was its revolutionary layout grid system. Grid systems are used for creating page layouts through a series of rows and columns that house your content.

Tipically, every row of bootstrap is wrapped inside a container either normal or container-fluid. In the React version, these components are named as Grid and can be used in the following way:. Bootstrap provides different styles of buttons that can be used easily in the same way with React. The following component creates a button that displays a modal when clicked. Once you click the close button, the dialog will be closed automatically:.

As we didn't want to list all the components of bootstrap but the most used, you will find all the components in the documentation on the official React Bootstrap Website here. Interested in programming since he was 14 years old, Carlos is a self-taught programmer and founder and author of most of the articles at Our Code World.Bootstrap currently v3.

Read through to see what suits your particular needs. Download Bootstrap. Source Less, JavaScript, and font files, along with our docs. Requires a Less compiler and some setup. Download source. Download Sass. Just use these Bootstrap CDN links. Bootstrap is downloadable in two forms, within which you'll find the following directories and files, logically grouping common resources and providing both compiled and minified variations.

Please note that all JavaScript plugins require jQuery to be included, as shown in the starter template. Consult our bower. Once downloaded, unzip the compressed folder to see the structure of the compiled Bootstrap. You'll see something like this:.

This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. Fonts from Glyphicons are included, as is the optional Bootstrap theme. More specifically, it includes the following and more:. Beyond that, any other included file provides support for packages, license information, and development. Bootstrap uses Grunt for its build system, with convenient methods for working with the framework. It's how we compile our code, run tests, and more.

To install Grunt, you must first download and install node. As a Bootstrap user, this is normally the command you want. Watches the Less source files and automatically recompiles them to CSS whenever you save a change.

Builds and tests CSS, JavaScript, and other assets which are used when running the documentation locally via jekyll serve. Requires Jekyll.

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Usually only necessary if you're hacking on Bootstrap itself. Then, rerun npm install. Start with this basic HTML template, or modify these examples. We hope you'll customize our templates and examples, adapting them to suit your needs. Build on the basic template above with Bootstrap's many components.Glyphicons are great!

They're one of my favourite additions to native Bootstrap 3. I've been working with these glyphs quite a lot, so I thought I'd make a cheat sheet for myself. To use this cheat sheet, simply find the glyphicon you want to use and click the copy button. This will add the complete HTML code for that glyphicon span tag and all to your clipboard, ready to paste into your web development tool of choice.

Glyphicons are basically little symbols, icons, or pictograms whatever you prefer to call them that you can use in a webpage. They're implemented in Bootstrap as an icon font — a custom font that contains these glyphs instead of letters.

If you're creating a site based on Bootstrap 3.

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Don't know how to set up Bootstrap? Bootstrap hosting very kindly provided by bootstrapcdn. Icon fonts aren't the only way to implement icons on the web. If you're looking for a explanation of using icon fonts vs.

Short answer: absolutely! Jan has kindly released them under the same MIT license as Bootstrap. If you'd like more detail, please check out Jan's licensing page. So, how do I add an icon to my webpage? Well, Glyphicons can be used on the web in one of three ways. Icon classes shouldn't be combined with other elements in Bootstrap. They're designed to be standalone. Firstly, the CSS rule.

This method works by including the rendering of the icon before the content using the :before CSS psuedo-element. Firstly, the web-font is specified with font-familyand then the icon is specified by using the content property alongside a unicode hex entity in this case, f Note: This method is useful because it seperates the visual elements of your design—like icons—from the structural HTML, so you can add glyphicons to existing elements.

Particularly useful for tasks like Wordpress or Moodle theme development, for example. You can use glyphicons in a variety of ways; in buttons, button groups for a toolbar, navigation or prepended form inputs.

bootstrap 3

Here are a few examples of glyphicons in action:. Want more info on the Glyphicons in Bootstrap 3? Check out the official Bootstrap documentation. My name is James Croft. I'm a web developer from Brisbane, Australia. If you found this page useful, consider buying a Bootstrap Cheat Sheet poster for your wall!

Toggle navigation. How to Use Bootstrap 3 Glyphicons Glyphicons are great! Cheat sheet? What are Glyphicons? Counterpoint Icon fonts aren't the only way to implement icons on the web. HTML Tag. This one is an icon of a house! Warning: Don't mix glyphicons with other components Icon classes shouldn't be combined with other elements in Bootstrap.


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