What is Bootstrap?
- Bootstrap is a free front-end framework for faster and easier web development
- Bootstrap also gives you the ability to easily create responsive designs
What is Responsive Web Design?
Responsive web design is about creating web sites which automatically adjust themselves to look good on all devices, from small phones to large desktops.
Bootstrap was developed by Mark Otto and Jacob Thornton at Twitter, and released as an open source product in August 2011 on GitHub.
In June 2014 Bootstrap was the No.1 project on GitHub!
Why Use Bootstrap?
Advantages of Bootstrap:
- Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Bootstrap
- Responsive features: Bootstrap’s responsive CSS adjusts to phones, tablets, and desktops
- Mobile-first approach: In Bootstrap 3, mobile-first styles are part of the core framework
- Browser compatibility: Bootstrap is compatible with all modern browsers (Chrome, Firefox, Internet Explorer, Edge, Safari, and Opera)
Where to Get Bootstrap?
There are two ways to start using Bootstrap on your own web site.
- Download Bootstrap from getbootstrap.com
- Include Bootstrap from a CDN
If you want to download and host Bootstrap yourself, go to getbootstrap.com, and follow the instructions there.
If you don’t want to download and host Bootstrap yourself, you can include it from a CDN (Content Delivery Network).
Create First Web Page With Bootstrap
1. Add the HTML5 doctype
Bootstrap uses HTML elements and CSS properties that require the HTML5 doctype.
Always include the HTML5 doctype at the beginning of the page, along with the lang attribute and the correct character set:
2. Bootstrap 3 is mobile-first
Bootstrap 3 is designed to be responsive to mobile devices. Mobile-first styles are part of the core framework.
To ensure proper rendering and touch zooming, add the following
<meta>tag inside the
width=device-width part sets the width of the page to follow the screen-width of the device (which will vary depending on the device).
initial-scale=1 part sets the initial zoom level when the page is first loaded by the browser.
Bootstrap also requires a containing element to wrap site contents.
There are two container classes to choose from:
.containerclass provides a responsive fixed width container
.container-fluidclass provides a full width container, spanning the entire width of the viewport
Two Basic Bootstrap Pages
The following example shows the code for a basic Bootstrap page (with a responsive fixed width container):
The following example shows the code for a basic Bootstrap page (with a full width container):