Category: 03. BOOTSTRAP
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		How can one create an alert in Bootstrap?Create a wrapper <div> and add a class of .alert and one of the contextual classes to create a basic alert (e.g., .alert-success, .alert-info, .alert-warning, .alert-danger, .alert-primary, .alert-secondary, .alert-light or .alert-dark). 
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		What contextual classes can be used to style the panels?To make a panel more meaningful to a specific context, use contextual state classes like panel-primary, panel-success, panel-info, panel-warning, and panel-danger. 
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		In Bootstrap, how do you make navigation elements?The navigation elements in Bootstrap can be styled in a variety of ways. The markup and base class are the same in all of these .nav. To build tabular navigation or tabs, execute the following steps: Begin by creating an unordered list using the base class of .nav. The .nav-tabs class should be added. 
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		In Bootstrap 4, what is flexbox?Flexbox is a layout module for flexible boxes. Without using float or positioning, you can quickly create a flexible layout design with flexbox. 
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		What is a lead?Lead adds some emphasis to a paragraph. The .lead class is used to achieve this and it makes the font larger, taller, and lighter in weight. 
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		In Bootstrap, what are the two codes for displaying code?In Bootstrap, there are two straightforward ways to display code: 
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		How can you use Bootstrap to make thumbnails?To make thumbnails with Bootstrap, go through the steps below: Wrap an image in an <a> tag with the class .thumbnail. It will add a grey border and four pixels of padding. An animated light will now outline the image when it has hovered over. 
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		What is a breadcrumb in Bootstrap?Breadcrumbs are a wonderful way to display a site’s hierarchy-based information. Breadcrumbs can show the dates of publication, categories, and tags in the case of blogs. They show where the current page is in the navigational hierarchy. In Bootstrap, a breadcrumb is essentially an unordered list with the class .breadcrumb. CSS adds the separator for… 
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		What is a Button Group, and what is the class for a basic Button Group?Multiple buttons can be placed together on a single line using button groups. You can use this to group objects together, such as alignment buttons. The .btn-group class is used for basic button groups. You can use the class .btn to wrap a set of buttons in .btn-group. 
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		What is the difference between Bootstrap 3 and Bootstrap 4PARAMETER BOOTSTRAP 3 BOOTSTRAP 4 Grid System 4 tier grid system (xs, sm, md, lg). 5 tier grid system (xs, sm, md, lg, xl). CSS File LESS SASS Button Size Bootstrap 3 supports .btn-xs class. Only .btn-sm and .btn-lg are available in bootstrap 4. Horizontal Form We do not need a .row class using a…