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Q1. Answer: The class selector is used to specify a style for a group of elements.
Q2. Answer: The class selector uses the HTML class attribute and it is define with a ".".
Example: All HTML elements with class="centre" will be centre aligned
.centre{text-align:center;}
Q3. Answer: Inline Style is used the style attribute in the relevant tag. The style attribute can contain any CSS property.
Example: <p style="color:red;margin-left:15px;">This is an Inline Style.</p>
Q4. Answer: An internal style sheet should be used when a single document has a unique style. An internal style sheet is used in the head section of an HTML page. It define in the <Style> tag.
Example: <head>
<style>
hr{color:red;}
p{margin-left:15px;}
</style>
</head>
Q5. Answer: An External Style sheet is a file which save with ".css" extension. All style format write in it for all web page and access in HTML page through <link>tag. This file should not contain any HTML tags.
Example: The <link> tag goes inside the head section:
<head>
<link rel="stylesheet" type="text/css" href="ssheet.css">
</head>
In CSS ssheet.css
hr{color:red;}
p{margin-left:15px;}
