CSS allows developers to separate the presentation of a website from its structure, making it easier to maintain and update.
Styles can be applied to individual HTML elements using inline styles, or to multiple elements using Class and ID selectors. CSS can also be used to control the layout of a webpage, including the position and size of elements on the page.
Types of HTML styles
There are several ways to apply styles to HTML elements using CSS, including:
Inline styles: Styles can be applied directly to an HTML element using the "style" attribute.
This method is used to apply styles to a single element and has the highest specificity.
Internal stylesheet: An internal stylesheet is a block of CSS code that is included within the head of an HTML document.
This method is used to apply styles to multiple elements throughout the document.
External stylesheet: An external stylesheet is a separate .css file that is linked to an HTML document using the "link" element.
This method is used to apply styles to multiple pages of a website and allows for easy maintenance and updating of styles.
CSS Frameworks: There are several CSS frameworks available such as Bootstrap, Foundation, Bulma, etc.
These frameworks provide a set of pre-defined CSS classes and JavaScript components that can be easily added to an HTML document to quickly create a responsive and visually appealing website.
CSS Preprocessors: CSS preprocessors like SASS, LESS and Stylus are scripting languages that extend CSS capabilities.
These preprocessors allow developers to use variables, functions, and other programming constructs in their CSS, making it easier to maintain and scale.
Here are examples of the different types of HTML styles:
Inline styles:
<p style="color: blue;">This is a blue paragraph.</p>
Internal stylesheet:
<head>
<style>
p {
color: blue;
}
</style>
</head>
<body>
<p>This is a blue paragraph.</p>
</body>
External stylesheet:
<head>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<p class="blue-text">This is a blue paragraph.</p>
</body>
And in the styles.css file
.blue-text {
color: blue;
}
CSS Frameworks:
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.2/css/bootstrap.min.css">
<div class="container">
<div class="row">
<div class="col-md-6">
<p class="text-primary">This is a blue paragraph</p>
</div>
</div>
</div>
CSS Preprocessors:
$primary-color: blue;
p {
color: $primary-color;
}
This will then be compiled into regular CSS
p {
color: blue;
}
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