What is Bootstrap? Learn From Basic with Examples

Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile-first projects on the web. with bootstrap, you can design a responsive template faster. you don’t need to code a lot of CSS coding because bootstrap itself has CSS coding, you need to call its class name. if you want to design a template so simply include CSS and JS links of bootstrap into your HTML file. bootstrap makes your work easy you can design a template for Tablet, mobile, and PC. as you know in the 21st-century people are using the device more than Computer they check everything in a device so you need to design responsive websites. to increase viewers on your websites.

In this article, you will learn how to start with a bootstrap framework. web designers and web developers should know bootstrap because they need it during his projects. you can’t develop any website without its responsive mode if your website is not designed in a responsive mode so think that it’s useless. so let’s start

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What you will learn?

  1. History
  2. Download
  3. Contents
  4. Layouts
  5. Components
  6. Start with Bootstrap
  7. First Project with Bootstrap

1. Bootstrap History:

Mark Otto and Jacob Thornton developed Bootstrap at Twitter as a means of improving the consistency of tools used on the site and reducing maintenance. The software was formerly known as Twitter Blueprint and is sometimes referred to as Twitter Bootstrap.

2. Download Bootstrap:

you can download the bootstrap from three ways in your PC.

  • npm
  • CDN
  • Source

npm:

install Bootstrap in your Node.js powered apps with the npm package:

$ npm install bootstrap

it will install all bootstrap files including CSS and JS file. just you need to run the above code.

CDN:

if you don’t want to download bootstrap file so simply insert CDN link on your projects

<!– Latest compiled and minified CSS –>
<link rel=”stylesheet”href=”https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css”>

<!– jQuery library –>
<script src=”https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js”></script>

<!– Latest compiled JavaScript –>
<script src=”https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js”></script>
include this links inside <html> -> <head> links </head>.

<!DOCTYPE html>
<html lang=”en”>
<head>
<title>Bootstrap links</title>
<meta charset=”utf-8″>
<meta name=”viewport” content=”width=device-width, initial-scale=1″>
<link rel=”stylesheet”href=”https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css”>
<script src=”https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js”></script>
<script src=”https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js”></script>
</head>
<body>

Source:

you can download the bootstrap source from this link Download Bootstrap it includes all files of bootstrap that you will need during your projects. so include the links on your project that you need.

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3. Bootstrap Contents:

once you download bootstrap then unzip the compressed folder then finally you will see these files.

bootstrap/
├── css/
│   ├── bootstrap-grid.css
│   ├── bootstrap-grid.css.map
│   ├── bootstrap-grid.min.css
│   ├── bootstrap-grid.min.css.map
│   ├── bootstrap-reboot.css
│   ├── bootstrap-reboot.css.map
│   ├── bootstrap-reboot.min.css
│   ├── bootstrap-reboot.min.css.map
│   ├── bootstrap.css
│   ├── bootstrap.css.map
│   ├── bootstrap.min.css
│   └── bootstrap.min.css.map
└── js/
    ├── bootstrap.bundle.js
    ├── bootstrap.bundle.js.map
    ├── bootstrap.bundle.min.js
    ├── bootstrap.bundle.min.js.map
    ├── bootstrap.js
    ├── bootstrap.js.map
    ├── bootstrap.min.js
    └── bootstrap.min.js.map 

these are those files that simply used the most and each file works different and it has a different class name. include it on your project file and call its class name. remember bootstrap css won’t work without bootstrap js you have to include css and js links both.

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Bootstrap Supports Browsers:

bootstrap support various browsers which are Chrome, Firefox, Safari, Edge, Explorer, IOS, Andriod, and Opera. you can run your website in these browsers you won,t face any kind of problems because bootstrap supports these browsers.

4. Bootstrap Layouts:

In here you will learn about bootstrap layouts as it has different layouts here are the details.

1. Grid System:

as you know bootstrap makes our work often easy and it has a different grid system (col system) which you need the most during your project. and those grids are responsive you don’t need to use media queries for them. and there are five total tiers (xs, sm, md, lg, and xl).

here is the usage of the grid.

<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
<div class=”col-lg-1″>
<!– content –>
</div>
as we have 12 grid in bootsrap here is the output.
grid system
<div class=”col-lg-3″>
<!– content –>
</div>
<div class=”col-lg-3″>
<!– content –>
</div>
<div class=”col-lg-3″>
<!– content –>
</div>
<div class=”col-lg-3″>
<!– content –>
</div>

col-4

<div class=”col-lg-4 col-md-4 col-sm-6″>
<!– content –>
</div>
<div class=”col-lg-4 col-md-4 col-sm-6″>
<!– content –>
</div>
<div class=”col-lg-4 col-md-4 col-sm-6″>
<!– content –>
</div>
col-4
in the last example you see 3 different grid value as the first one is col-lg-4 it is used for the large screen. second value as you see col-md-4 it is used for medium screen and third value you see col-sm-6 it is used for the small screen.

2. Container:

Web designer and web developer mostly use the container for their contents. as you know the width of a page is 100%. so while you use the container so your content gets space of 80%. if you use 100% width so your content looks bad in a browser so you need to give space from left and right side of your content in order to look nice. here is an example of a container and how to call container class.

<div class=”container”>
<!– content –>
</div>
here is the result.
container imgor use .container-fluid for full width here is the example.
<div class=”container-fluid”>
<!– content –>
</div>
here is the output of container-fluid
container-fluidso this was about the bootstrap container and container-fluid. programmer virtually use this class for his section. because it makes the section or content look nice.

3. Bootstrap Breakpoints:

as bootstrap developed for mobile, tablet, and Smartphones. so here are media queries which are most useful for a responsive mode. through media queries, you can handle the layouts in the minimum viewport and make your content in responsive mode also.

Bootstrap primarily uses the following media queries range or breakpoint in our source.

// Extra small devices (portrait phones, less than 576px)
// No media query for `xs` since this is the default in Bootstrap

// Small devices (landscape phones, 576px and up)
@media (min-width: 576px) { ... }

// Medium devices (tablets, 768px and up)
@media (min-width: 768px) { ... }

// Large devices (desktops, 992px and up)
@media (min-width: 992px) { ... }

// Extra large devices (large desktops, 1200px and up)
@media (min-width: 1200px) { ... }

you can manage your layout viewport through this media queries range as given above.

5. Components:

Bootstrap has its component with a class name.  it has a different component for various layout or various styles. you can use its component on your project by calling its class name. here is some example of the bootstrap component

1. Alert:

Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.

Example:

you can use an alert for any length of text it is used with button handle mostly. you can call its class name by typing .alert-danger . and it has eight alert class.

now how to use a badge with content. here is the example.

<h1>Example heading <span class=”badge badge-danger”>New</span></h1>
<h2>Example heading <spanclass=”badge badge-danger”>New</span></h2>
<h3>Example heading <spanclass=”badge badge-danger”>New</span></h3>
<h4>Example heading <spanclass=”badge badge-danger”>New</span></h4>
<h5>Example heading <spanclass=”badge badge-danger”>New</span></h5>
<h6>Example heading <spanclass=”badge badge-danger”>New</span></h6>
badge example

3. Button:

Use Bootstrap’s custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more.

Example:

<button type=”button” class=”btn btn-primary”>Primary</button>
<button type=”button” class=”btn btn-secondary”>Secondary</button>
<button type=”button” class=”btn btn-success”>Success</button>
<button type=”button” class=”btn btn-danger”>Danger</button>
<button type=”button” class=”btn btn-warning”>Warning</button>
<button type=”button” class=”btn btn-info”>Info</button>
<button type=”button” class=”btn btn-light”>Light</button>
<button type=”button” class=”btn btn-dark”>Dark</button>
<button type=”button” class=”btn btn-link”>Link</button>
button example

4. Form:

Examples and usage guidelines for form control styles, layout options, and custom components for creating a wide variety of forms.

Example:

<form>
<div class=”form-group”>
<label for=”exampleInputEmail1″>Email address</label>
<input type=”email” class=”form-control” id=”exampleInputEmail1″ aria-describedby=”email Help” placeholder=”Enter email”>
<small id=”email Help “class=”form-text text-muted”>We’ll never share your email with anyone else.</small>
</div>
<div class=”form-group”>
<label for=”exampleInputPassword1″>Password</label>
<input type=”password” class=”form-control” id=”exampleInputPassword1″ placeholder=”Password”>
</div>
<div class=”form-group form-check”>
<input type=”checkbox” class=”form-check-input” id=”exampleCheck1″>
<label class=”form-check-label” for=”exampleCheck1″>Check me out</label>
</div>
<button type=”submit”class=”btn btn-primary”>Submit</button>
</form>
form
I think this much example is enough for a bootstrap component. hope you get it well.

6. How to Start With Bootstrap?

now you get somehow about bootstrap. so here, you will get how to start with bootstrap. before starting with it you need to have bootstrap in your PC if you don’t have to go to above on heading 2 and download it on your PC. then you need to create a folder on your Desktop or anywhere you want. (read it carefully) then create 2 folders one for CSS and one for JS  and one html file as index.html. after creating your folder and downloading bootstrap on your PC, then put bootstrap css file in your CSS folder and bootstrap js file in your JS folder. then open the folder with your favorite html editor.

now you opened your folder in any IDE then include bootstrap css and js file on your html file.

start bootstrap

one thing you can include your js file in <head> tag also or you can include it at the last before <body> tag also it’s your wish. but if you include it at the last so it is good. so finally your folder is ready to create the first project let’s start.

7. First Project with Bootstrap:

let’s do our first project with bootstrap. here I will do a simple bootstrap project for you.

HTML code

<!DOCTYPE html>
<html lang=”en”>
<head>
<meta charset=”UTF-8″>
<meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
<meta http-equiv=”X-UA-Compatible”content=”ie=edge”>
<title>Using Container</title>
<link rel=”stylesheet” href=”css/bootstrap.min.css”>
<link rel=”stylesheet” href=”css/style.css”>
</head>
<body>
<div id=”project”>
<div class=”container”>
<div class=”project-header text-center”>
<h2 class=”badge badge-success”>First Project</h2>
<p class=”text-info”>Lorem ipsum dolor sit amet consectetur adipisicing elit. Quis, labore!</p>
</div>
<div class=”project-content”>
<div class=”row”>
<div class=”col-lg-6 col-md-6 col-sm-12″>
<div class=”project-box”>
<h1 class=”text-success”>Hello viewer <span class=”badge badge-success”>thank for view</span></h1>
<p style=”color: #918f8f”>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Expedita rerum neque veniam ipsum quis mollitia excepturi dolorum dolorem explicabo voluptatem!</p>
<p style=”color: #918f8f”>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Expedita rerum neque veniam ipsum quis mollitia excepturi dolorum dolorem explicabo voluptatem!</p>
<button class=”btn btn-success”>Get Start</button>
<button class=”btn btn-primary”>Get Start</button>
</div>
</div>
<div class=”col-lg-6 col-md-6 col-sm-12″>
<img src=”contact.png” alt=”image”>
</div>
</div>
</div>
</div>
</div>
<script src=”js/bootstrap.min.js”></script>
<script src=”js/script.js”></script>
</body>
</html>
CSS code
body{
background: #ccc;
}
.container{
margin-top: 20px;
background: #fff;
padding-top: 20px ;
padding-bottom: 40px ;
border-radius: 10px;
}
.project-content button{
margin-top: 20px;
}
.project-content img{
width: 100%;
height: 300px;
}
.project-box{
margin-top: 50px;
}
project
our project has done you can see the output in the browser. in the above, there is the code file of html and css if you want to try it yourself so copy html and css code from here.

Summary:

In this article, you learned about Bootstrap. you learned about its history and how to do download it on our PC. then you learned about its contents and layout as you learned about different layouts. after that, you learned about its component with its example and explanation. then at the last, you learned how to start and create our first project with bootstrap class and its links.

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