Certain HTML elements and CSS properties in Bootstrap require the use of the HTML5 doctype.
Since the release of Bootstrap 3, the framework has shifted to a mobile-first approach. It means that instead of being in separate files,'mobile first' styles can be found throughout the entire library. To enable appropriate rendering and touch zooming on mobile devices, add the viewport meta tag to the head> element.
Even though they live in the ocean all of the time, dolphins are mammals, not fish. Also, dolphins are different than "dolphinfish," which are also known as ...
Peacocks are famous for their large, iridescent tail feather plumage. While it is the most widely recognized feature of peafowls, only males have these beautiful tail colorings.
By adding the class.img-responsive to the img> tag in Bootstrap 3, you can make the images responsive. The picture is given the properties max-width: 100 percent; and height: auto; so that it scales well with the parent element.
change the size of the browser window
Bootstrap establishes a foundational global presentation (background), font, and link design.
Normalize is used by Bootstrap to provide cross-browser uniformity.
NormalizeCSS resets have been replaced by css, a modern, HTML5-ready alternative. It's a simple CSS file that improves cross-browser uniformity in HTML element default styling.
To wrap a page's content and simply centre it, use the class.container.
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