Bootstrap

Class loader is a part of JRE (Java Runtime Environment) which loads Java classes into Java virtual environment. Class loaders also does the process of converting a named class into its equivalent binary form.

A well is a container in <div> that causes the content to appear sunken or an inset effect on the page. To create a well, simply wrap the content that you would like to appear in the well with a <div> containing the class of .well.

Bootstrap is a framework for building the rich web applications with minimal effort. This framework emphasis more on building mobile web applications.

The page header is a nice little feature to add appropriate spacing around the headings on a page. This is particularly helpful on a web page where you may have several post titles and need a way to add distinction to each of them. To use a page header, wrap your heading in a <div> with a class of .page-header.

The navbar is one of the prominent features of Bootstrap sites. Navbars are responsive 'meta' components that serve as navigation headers for your application or site. Navbars collapse in mobile views and become horizontal as the available viewport width increases. At its core, the navbar includes styling for site names and basic navigation.

Breadcrumbs are a great way to show hierarchy-based information for a site. In the case of blogs, breadcrumbs can show the dates of publishing, categories, or tags. They indicate the current page's location within a navigational hierarchy.

A breadcrumb in Bootstrap is simply an unordered list with a class of .breadcrumb. The separator is automatically added by CSS (bootstrap.min.css).

The Bootstrap carousel is a flexible, responsive way to add a slider to your site. In addition to being responsive, the content is flexible enough to allow images, iframes, videos, or just about any type of content that you might want.

The key components of Bootstrap are

☛ CSS : It comes with plenty of CSS files

☛ Scaffolding : It provides a basic structure with Grid system , link styles and background

☛ Layout Components : List of layout components

☛ JavaScript Plugins: It contains many jQuery and JavaScript plugins

☛ Customize: To get your own version of framework you can customize your components

Pagination is the handling of an unordered list by bootstrap. To handle pagination bootstrap provides following classes

☛ .pagination: To get pagination on your page you have to add this class

☛ .disabled, .active: Customize links by .disabled for unclickable links and .active to indicate the current page

☛ .pagination-Ig, .pagination-sm: Use these classes to get different size item

Bootstrap container is a class which is useful and creates a centered area within the page where our site content can be put within. The advantage of the bootstrap .container is that it is responsive and will place all our other HTML code.

By placing multiple bars under the same .progress parent element, Bootstrap will stack them into one single progress bar. Since the sum of the progress bar is 100%, the progress bar will be full width and fully populated.

The only dependency that Bootsrap requires to work properly is jQuery, and this is only for Bootstrap’s JavaScript plugins. At the moment, Bootsrap v3.3.4 requires jQuery v1.9.1 or later.

Glyphicons are icon fonts which you can use in your web projects. Glyphicons Halflings are not free and require licensing, however their creator has made them available for Bootstrap projects free of cost.

.btn-toolbar helps to combine sets of <div class = "btn-group"> into a <div class = "btn-toolbar"> for more complex components.

☛ Plenty of CSS files

☛ Scaffolding

☛ List of layout components

☛ JavaScript Plugins

☛ Customize your components

☛ Fluid Layout

☛ Fixed Layout

☛ HTML

☛ CSS

☛ LESS

☛ Sass

☛ JavaScript

here are two ways to add panel heading −

☛ Use .panel-heading class to easily add a heading container to your panel.

☛ Use any <h1>-<h6> with a .panel-title class to add a pre-styled heading.