HTML Uses Elements to Describe the Structure of Pages
Tags act like containers. They tell you something about the information that lies between their opening and closing tags.
Attributes provide additional information about the contents of an element. They appear on the opening tag of the element and are made up of two parts: a name and a value,separated by an equals sign.
To learn HTML you need to know what tags are available for you to use, what they do, and where they can go.
The HTML class attribute is used to specify a class for an HTML element.
Multiple HTML elements can share the same class.
Some elements will always appear to start on a new line in the browser window. These are known as block level elements.
Some elements will always appear to continue on the same line as their neighbouring elements. These are known as inline elements.
Examples of inline elements are , , , and .
src :The src attribute specifies the URL of the page to show in the frame.
height : The height attribute specifies the height of the iframe in pixels.
width : The width attribute specifies the width of the iframe in pixels.
:The element lives inside the <head> element and contains information about that web page.