Tuesday, April 24, 2018

HTML Links - Hyperlinks


HTML Links - Hyperlinks

HTML Link Tags
Tag     Description
<a>     Defines a hyperlink

HTML links are hyperlinks.

You can click on a link and jump to another document.

When you move the mouse over a link, the mouse arrow will turn into a little hand.

Note: A link does not have to be text. It can be an image or any other HTML element.

HTML Links - Syntax
In HTML, links are defined with the <a> tag:
<a href="url">link text</a>

Example
<a href="https://www /html/">Visit our HTML tutorial</a>
»
The href attribute specifies the destination address (https://www /html/) of the link.

The link text is the visible part (Visit our HTML tutorial).

Clicking on the link text will send you to the specified address.

Note: Without a forward slash on subfolder addresses, you might generate two requests to the server. Many servers will automatically add a forward slash to the address, and then create a new request.

Local Links
The example above used an absolute URL (A full web address).

A local link (link to the same web site) is specified with a relative URL (without http://www....).

Example
<a href="html_images.html">HTML Images</a>
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HTML Link Colors
By default, a link will appear like this (in all browsers):

An unvisited link is underlined and blue
A visited link is underlined and purple
An active link is underlined and red
You can change the default colors, by using styles:

Example
<style>
a:link    {color:green; background-color:transparent; text-decoration:none}
a:visited {color:pink; background-color:transparent; text-decoration:none}
a:hover   {color:red; background-color:transparent; text-decoration:underline}
a:active  {color:yellow; background-color:transparent; text-decoration:underline}
</style>
»
HTML Links - The target Attribute
The target attribute specifies where to open the linked document.

The target attribute can have one of the following values:

_blank - Opens the linked document in a new window or tab
_self - Opens the linked document in the same window/tab as it was clicked (this is default)
_parent - Opens the linked document in the parent frame
_top - Opens the linked document in the full body of the window
framename - Opens the linked document in a named frame
This example will open the linked document in a new browser window/tab:

Example
<a href="https://www.megas.com/" target="_blank">Visit Omegas!</a>
»
Tip: If your webpage is locked in a frame, you can use target="_top" to break out of the frame:

Example
<a href="https://www.megas.com/html/" target="_top">HTML5 tutorial!</a>
»
HTML Links - Image as Link
It is common to use images as links:

Example
<a href="default.html">
  <img src="smiley.gif" alt="HTML tutorial" style="width:42px;height:42px;border:0;">
</a>
»
Note: border:0; is added to prevent IE9 (and earlier) from displaying a border around the image (when the image is a link).

HTML Links - Create a Bookmark
HTML bookmarks are used to allow readers to jump to specific parts of a Web page.

Bookmarks can be useful if your webpage is very long.

To make a bookmark, you must first create the bookmark, and then add a link to it.

When the link is clicked, the page will scroll to the location with the bookmark.

Example
First, create a bookmark with the id attribute:

<h2 id="C4">Chapter 4</h2>
Then, add a link to the bookmark ("Jump to Chapter 4"), from within the same page:

<a href="#C4">Jump to Chapter 4</a>
Or, add a link to the bookmark ("Jump to Chapter 4"), from another page:

Example
<a href="html_demo.html#C4">Jump to Chapter 4</a>
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External Paths
External pages can be referenced with a full URL or with a path relative to the current web page.

This example uses a full URL to link to a web page:

Example
<a href="https://www.megas.com/html/default.html">HTML tutorial</a>
»

This example links to a page located in the html folder on the current web site:

Example
<a href="/html/default.html">HTML tutorial</a>
»

This example links to a page located in the same folder as the current page:

Example
<a href="default.html">HTML tutorial</a>
»

You can read more about file paths in the chapter HTML File Paths.



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