Thursday, 31 December 2020

Basics of Bootstrap



Install Bootstrap

npm install

add .gitignore file and add entry for node_modules folder

npm install bootstrap@4.0.0 --save

npm install jquery@3.3.1 popper.js@1.12.9 --save


Add this in head

<!-- Required meta tags always come first -->

     <meta charset="utf-8">

     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

     <meta http-equiv="x-ua-compatible" content="ie=edge"> 

     <!-- Bootstrap CSS -->

     <link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.min.css">


At this at bottom of body

    <!-- jQuery first, then Popper.js, then Bootstrap JS. -->

    <script src="node_modules/jquery/dist/jquery.slim.min.js"></script>

    <script src="node_modules/popper.js/dist/umd/popper.min.js"></script>

    <script src="node_modules/bootstrap/dist/js/bootstrap.min.js"></script>

.........................

Bootstrap Grid

<div class="container">

Its a fixed width layout container, which adjust acc to screen size

<div class="row">

Content will be divided into multiple row, which will have 12 equals columns


xs [extra small],sm [small],md [medium],lg [large],xl [extra-large]

 Classes:  col-* [for extra small], col-sm-*, col-md-* etc

 

 <div class="col-sm-5">

This means this content will occupy 5 columns with small size

<div class="col-sm-7">

This means this content will occupy 5 columns with small size

Total to 12 in single line


 <div class="col-sm"> <div class="col-sm"> <div class="col-sm">

 each div will get 4th column width and equally divided

 

  <div class="col-sm"> <div class="col-sm-6"> <div class="col-sm">

  1st and 3rd will get 3 columns each


Bootstrap Grid has gutter width of 30 px (15px on each side of column)


Examples:

1) Using Column Classes

Extra Small Device

<div class="col-12 col-sm-5"> 

<div class="col-12 col-sm-7">


Small Medium Large Device

<div class="col-12 col-sm-5"> <div class="col-12 col-sm-7">


2) Re-ordering Content 

Extra Small Device

<div class="col-sm-5 order-sm-last"> 

<div class="col-sm-7 order-sm-first">


Small Medium Large Device

<div class="col-sm-7 order-sm-first"> <div class="col-sm-5 order-sm-last"> 

First-> shifts to left

Last-> Shifts to right

3) Verticle Alignment

<div class="row align-items-center"> 

4) Horizontal Alignment

<div class="row justify-content-center"> 

<div class="col-3"><div class="col-auto"><div class="col-3">

col-auto-> Assigns columns based on content present

then all combination of divs will be centered horizontly


5) Column Offsets

<div class="col-sm-4 offset-sm-1"> 

Shift Div one column left [one column will be balnk from left]


6) Nesting Columns

<div class="row">

<div class="col-sm-5 order-sm-last">

</div>

<div class="col-sm-7 order-sm-first">

<div class="row">

<div class="col-sm-5 order-sm-last">

</div>

<div class="col-sm-7 order-sm-last">

</div>

</div>

</div>

</div>

..............................................

Put  class="jumbotron" in header div to make it seperate (also gets grey background) from other divs


class="list-unstyled" in ul removes bullets


Add custom css in a seperate file and include it in header    

<link href="css/styles.css" rel="stylesheet">


Refer: https://getbootstrap.com/docs/4.0/layout/grid/


To hide elements in specific devicehttps://getbootstrap.com/docs/4.0/utilities/display/


Below is the complete sample html file

<!DOCTYPE html>

<html lang="en">


<head>

     <!-- Required meta tags always come first -->

     <meta charset="utf-8">

     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

     <meta http-equiv="x-ua-compatible" content="ie=edge">

 

     <!-- Bootstrap CSS -->

     <link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.min.css">

     <link rel="stylesheet" href="css/styles.css">

    <title>Ristorante Con Fusion</title>

</head>


<body>


    <header class="jumbotron">

        <div class="container">

            <div class="row row-header"> 

                <div class="col-12 col-sm-6">

                    <h1>Ristorante con Fusion</h1>

                    <p>We take inspiration from the World's best cuisines, and create a unique fusion experience. Our lipsmacking creations will tickle your culinary senses!</p>

                </div>

                <div class="col-12 col-sm">

                </div>

            </div>

        </div>

    </header>


    <div class="container">

        <div class="row row-content align-items-center">

            <div class="col-12 col-sm-4 order-sm-last col-md-3"> 

                <h3>Our Lipsmacking Culinary Creations</h3>

            </div>

            <div class="col col-sm order-sm-first col-md"> 

                <h2>Uthappizza</h2>

                <p>A unique combination of Indian Uthappam (pancake) and Italian pizza, topped with Cerignola olives, ripe vine cherry tomatoes, Vidalia onion, Guntur chillies and Buffalo Paneer.</p>

            </div>

        </div>



        <div class="row row-content align-items-center">

            <div class="col-12 col-sm-4 col-md-3">

                <h3>This Month's Promotions</h3>

            </div>

            <div class="col col-sm col-md">

                <h2>Weekend Grand Buffet</h2>

                <p>Featuring mouthwatering combinations with a choice of five different salads, six enticing appetizers, six main entrees and five choicest desserts. Free flowing bubbly and soft drinks. All for just $19.99 per person </p>

            </div>

        </div>


        <div class="row row-content align-items-center">

            <div class="col-12 col-sm-4 order-sm-last col-md-3">

                <h3>Meet our Culinary Specialists</h3>

            </div>

            <div class="col col-sm order-sm-first col-md">

                <h2>Alberto Somayya</h2>

                <h4>Executive Chef</h4>

                <p>Award winning three-star Michelin chef with wide International experience having worked closely with whos-who in the culinary world, he specializes in creating mouthwatering Indo-Italian fusion experiences. </p>

            </div>

        </div>

    </div>


    <footer class="footer">

        <div class="container">

            <div class="row">             

                <div class="col-4 offset-1 col-sm-2">

                    <h5>Links</h5>

                    <ul class="list-unstyled">

                        <li><a href="#">Home</a></li>

                        <li><a href="#">About</a></li>

                        <li><a href="#">Menu</a></li>

                        <li><a href="#">Contact</a></li>

                    </ul>

                </div>

                <div class="col-7 col-sm-5">

                    <h5>Our Address</h5>

                    <address>

              121, Clear Water Bay Road<br>

              Clear Water Bay, Kowloon<br>

              HONG KONG<br>

              Tel.: +852 1234 5678<br>

              Fax: +852 8765 4321<br>

              Email: <a href="mailto:confusion@food.net">confusion@food.net</a>

           </address>

                </div>

                <div class="col-12 col-sm-4 align-self-center">

                    <div class="text-center">

                        <a href="http://google.com/+">Google+</a>

                        <a href="http://www.facebook.com/profile.php?id=">Facebook</a>

                        <a href="http://www.linkedin.com/in/">LinkedIn</a>

                        <a href="http://twitter.com/">Twitter</a>

                        <a href="http://youtube.com/">YouTube</a>

                        <a href="mailto:">Mail</a>

                    </div>

                </div>

           </div>

           <div class="row justify-content-center">             

                <div class="col-auto">

                    <p>© Copyright 2018 Ristorante Con Fusion</p>

                </div>

           </div>

        </div>

    </footer>

        <!-- jQuery first, then Popper.js, then Bootstrap JS. -->

        <script src="node_modules/jquery/dist/jquery.slim.min.js"></script>

        <script src="node_modules/popper.js/dist/umd/popper.min.js"></script>

        <script src="node_modules/bootstrap/dist/js/bootstrap.min.js"></script>

</body>

</html>


LESS

To install the node module to support the compilation of the Less file:

    npm install -g less@2.7.2

To compile the Less file into a CSS file:

    lessc styles.less styles.css


SASS

check you node version by node -v and check which node-sass version is suported for it from https://github.com/sass/node-sass/releases Now we install the node module to support the compilation of the Scss file to a CSS npm install --save-dev node-sass@5.0.0 Next open your package.json file and add the following line into the scripts object there. This adds a script to enable the compilation of the Scss file into a CSS file: "scss": "node-sass -o css/ css/" In order to transform the Scss file to a CSS file, type the following at the prompt: npm run scss

No comments:

Post a Comment