Difference between revisions of "Bootstrap/C2/Color-Classes-in-Bootstrap/English"

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Latest revision as of 14:58, 1 July 2021

Title of the script: Color Classes in Bootstrap

Author: Neha Solanki

Domain Reviewer: Ankita Maske

Novice Reviewer: Abhijit Bonik

Keywords: Bootstrap, CSS, HTML, Web Page, Web Design, Web Technology, Video Tutorial, Spoken Tutorial, Border color classes, Text color classes, Links color classes, Background color classes


Visual Cue Narration
Slide: Title Welcome to the Spoken Tutorial on “Color Classes in Bootstrap”.
Slide 2:

Learning Objectives

In this tutorial, we will learn about color classes for:
  • Borders
  • Text
  • Links and
  • Background
Slide 3:

System Requirements

This tutorial is recorded using,
  • Ubuntu Linux OS v 18.04
  • Bootstrap 4.6.0
  • HTML5
  • CSS3
  • gedit Text Editor and
  • Firefox web browser
Slide 4: Prerequisite

https://spoken-tutorial.org

  • To follow this tutorial, you should be familiar with HTML and CSS.
  • If not, please go through the HTML and CSS tutorials on this website.
Slide: Layout

Image1.png -

In this tutorial, we will design a layout as shown here using color classes in Bootstrap.
Slide: Border Color Classes

border.png

Let’s start with the Border color classes.

Border color classes are used to color the borders.

Following are the border color classes shown in their respective color.

Let’s use one of these classes in our layout.

Point to Mypage.html & Mystyle.css in My-bootstrap folder Locate the files Mypage.html and Mystyle.css in the My-bootstrap folder.

We will use Mypage.html and Mystyle.css files which we saved earlier for this demonstration.

Slide: Code Files
  • The files used in this tutorial are available in the Code Files link on this tutorial page.
  • Please download and extract them.
  • Make a copy and then use them while practising.
Open Mypage.html in gedit Open the file Mypage.html in any text editor.

I have opened it in the gedit Text Editor.

[gedit - Mypage.html]

Delete:

<link rel="stylesheet" href="Mystyle.css">

First of all, we will remove linking Mystyle.css file with this HTML file.
[gedit - Mypage.html]

Delete:

border: 2px solid green;

And in the 4th row, delete the border property which was set using the style attribute.

We will design this layout using bootstrap color classes later.

Press Ctrl + S Save the file.
Open Mypage.html in Firefox Open the file Mypage.html in a web browser.

I have opened it in the Firefox web browser.

[Firefox] Observe that all the borders set by using Mystyle.css file and style attribute are now removed.

Now let's use the border color class.

Switch to Mypage.html in gedit Switch back to Mypage.html in the text editor.
[gedit - Mypage.html]

Type: 

<div class="container-lg border border-primary">
We’ll add a border with its color to the container as shown here.

Here the .border class is used to set a basic border.

And .border-primary class is used to color the border as blue.

[gedit - Mypage.html]

Type: 

<div class="row">
<div class="col-sm-3 order-sm-last pt-sm-5
 border border-primary">
<ul>

<a href="#" class="text-decoration-none text-reset"><li>
 Fruits & Vegetables </li></a>

<a href="#" class="text-decoration-none text-reset"><li>
 Foodgrain </li></a>

<a href="#" class="text-decoration-none text-reset"><li>
 Beverages </li></a>

<a href="#" class="text-decoration-none text-reset"><li>
 Personal care </li></a>

<a href="#" class="text-decoration-none text-reset"><li>
 Snacks & Branded Foods </li></a>

</ul></div>  

<div class="col-sm-9 pt-sm-5 border border-primary">

<h3> Welcome to Online Grocery Shopping!! </h3>

<p class="font-italic"> Buy your essentials at the lowest price.
Choose from fresh produce to packaged goods and 
get them delivered straight to your doorstep. 
Shop for Rs.1000 and more to get FREE delivery. <p>

</div></div>
We’ll also add borders to the columns of the 2nd row as shown here.
Press Ctrl + S Save the file.
Switch to firefox Switch to the browser and refresh the page.
[Firefox] Observe that the blue color border is added around the container.

And it is also added to both the columns of the 2nd row.

Slide: Text Color Classes

text.png

Next is text color classes.
  • Text color classes are used to color the text and links
  • Following are the text color classes shown in their respective color.

Let’s use some of these classes in our layout.

Switch to Mypage.html Switch to the Mypage.html file in the editor.
[gedit - Mypage.html]

Highlight: 

<div class="row">

<div class="col m-sm-4 text-center">

<h1 class="text-danger"> Bharat Mart </h1>

</div>

</div>
Notice the 1st row.

Recall that we had already set .text-danger class to the heading in one of the earlier tutorials.

Switch to firefox Switch to the browser.
[Firefox] Notice that the color of the heading is red.
Now let us see what happens if we add these color classes to links.
Switch to Mypage.html Switch to the Mypage.html file in the editor.
[gedit - Mypage.html]

Update: 

<ul>

<a href="#" class="text-decoration-none text-danger"><li>
 Fruits & Vegetables </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Foodgrain </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Beverages </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Personal care </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Snacks & Branded Foods </li></a>

</ul>
In the 2nd row, we’ll set the red color to all the links.

Now we will replace the .text-reset class with .text-danger class.

Press Ctrl + S Save the file.
Switch to firefox Switch to the browser and refresh the page.
[Firefox] Observe that the color of the links is now set to red.

Notice that the color of the links darkens when you move the cursor on them.

The color of links darkens only if we apply text color classes to links, not to text.

Only narration Next let’s learn about background color classes.
Slide: Background Color Classes

background.png

  • Background color classes are used to color the background of an element.

Following are the background color classes:

Now let’s understand them with examples.

Switch to Mypage.html Switch to the Mypage.html file.
[gedit - Mypage.html]

Update: 


<div class="row bg-info">

<div class="col m-sm-4 text-center text-uppercase bg-light">

<h1 class="text-danger display-4"> Bharat Mart </h1>

</div></div>
In the 1st row, add .bg-info class.

And in its column, add .bg-light class as shown here.

[gedit - Mypage.html]

Update: 

<div class="row">

<div class="col-sm-3 order-sm-last pt-sm-5
 border border-primary bg-light">

<ul>

<a href="#" class="text-decoration-none text-danger"><li>
 Fruits & Vegetables </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Foodgrain </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Beverages </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Personal care </li></a>

<a href="#" class="text-decoration-none text-danger"><li>
 Snacks & Branded Foods </li></a>

</ul></div>  

<div class="col-sm-9 pt-sm-5 border border-primary bg-light">

<h3> Welcome to Online Grocery Shopping!! </h3>

<p class="font-italic"> Buy your essentials at the lowest price.
Choose from fresh produce to packaged goods and
get them delivered straight to your doorstep. Shop for Rs.
1000 and more to get FREE delivery. <p>
</div></div>
In the 2nd row, add .bg-light class to both the columns as shown here.
[gedit - Mypage.html]

Update: 

<div class="row justify-content-around align-items-start
 bg-info" style="height: 160px;">

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

<h5> ABOUT BHARAT </h5>

<p class="font-italic"> About us <br> FAQ </p>

</div>

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

<h5> PAYMENT AND SHIPPING </h5>

<p class="font-italic"> Payment Methods <br> Shipping Policy </p>

</div>

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

<h5> CONTACT US </h5>

<p class="font-italic"> contact@bharat-online.com <br>
 9000000001 </p>

</div></div>
In the 3rd row, add .bg-info class as shown here.
[gedit - Mypage.html]

Update: 

<div class="row bg-secondary">

<div class="col font-weight-bold">

<div class="mx-auto" style="width: 140px;"> Copyright- 2021 
</div></div></div>
In the 4th row, add .bg-secondary class as shown here.
Press Ctrl + S Save the file.
Switch to firefox Switch to the browser and refresh the page.
[Firefox] Observe that we have successfully set the background colors to this HTML file.

In this manner, you can set different colors using Bootstrap color classes.

Only narration With this we have come to the end of this tutorial.

Let us now summarize.

Slide: Summary In this tutorial, we have learnt about classes which are used to color:
  • Borders
  • Text
  • Links and
  • Background
Slide: Assignment As an assignment-
  • Open the Mypage.html file.
  • In the 4th row, add a border and set its color using the .border-dark class.
  • Save the file.
  • Observe the output on the web browser.
Slide: About Spoken Tutorial project The video at the following link summarises the Spoken Tutorial project.

Please download and watch it.

Slide: Spoken Tutorial Workshops The Spoken Tutorial Project team conducts workshops and gives certificates.

For more details, please write to us.

Slide: Forum Please post your timed queries on this forum.
Slide: Acknowledgement Spoken Tutorial project is funded by Ministry of Education (MoE), Govt. of India.
Slide: Thanks This is Neha Solanki from Spoken Tutorial, IIT Bombay signing off.

Thanks for watching.

Contributors and Content Editors

Nancyvarkey, Nehasolanki

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