Html Course

Image maps are parts of the same image that is 'divided' in several areas, each with its own link.
An image-map is an image with clickable areas. So, you can use a single image for several links inside it.

Creating Image Map

To create an image map, add the usemap attribute inside the <img> tag.

<img src='image.jpg' alt='Text' usemap='#map_name' />
- The value of the 'usermap' represents the name of the map.
Then begins to form the map, using the <map> tag:
<map id='map_name'> ... </map>
- 'map_name' must be the same value added in 'usemap' attribute, it creates a relationship between the image and the map.
The map element contains a number of <area> tags, that defines the clickable areas in the image map:
<area shape='value' coords='coordinates' href='url' />
- The '<area>' tag defines an area inside an image-map. The 'shape' attribute specifies the shape of an area, the 'coords'attribute specifies the coordinates of an area.

In the following example you can see the general form of an image-map with two rectangle areas:
<img src='image.jpg' usemap='#map1'>
<map id='map1'>
 <area shape='rect' coords='9, 120, 56, 149' href='url'>
 <area shape='rect' coords='100, 200, 156, 249' href='url'>
</map>

In the table below are presented the attributes which can be used, and their description:
Element Attribute Description
<img attributes > - Tag used to add an image in an HTML document
ismap Specifies an image as a server-side image-map
usemap='#map_name' Specifies an image as a client-side image-map
alt='Title' Specifies an alternate text for an image
src='img_address' the URL of an image
<map attributes > ... </map> - Defines an image-map
id='map_name' Specifies the name for an image-map
<area attributes /> - Defines a clickable area inside an image-map
shape='value' Specifies the shape of an area. The 'value' can be: rect, circle, poly
coords='coordinates' the coordinates of a region (in pixels); are defined according to the top left corner of the image (it has coords (0, 0); x = 0, y = 0); varies depending on SHAPE:
- for 'rect' - it specifies the coordinates of the top-left corner and the bottom-right corner of the rectangle (x1, y1, x2, y2)
- for 'circle' - it specifies the coordinates of the circle center and the radius (x, y, radius)
- for 'poly' - it specifies the coordinates of the edges of the polygon. If the first and last coordinate pairs are not the same, the browser must add the last coordinate pair to close the polygon (x1, y1, x2, y2, ..., xn, yn)
href='url' Specifies the destination of a link in an area
alt='text' an alternate text for an area
target='value' Specifies where to open the linked page specified in the 'href' attribute (_blank, _parent, _self, _top)

The following example creates an Image Map with three different areas: circle, rectangle and polygon; each of them with its own link.
<html>
<head>
 <title>Image Map</title>
</head>
<body>

<img src='image_map.gif' alt='Image Map' width='300' height='300' usemap='#map1'>

<map id='map1'>
 <area
 href='dir/contact.php' alt='Contact page' title='Contact page'
 shape='rect' coords='6,116,97,184'>
 <area
 href='html/course.html' alt='HTML Course' title='HTML Course'
 shape='circle' coords='251,143,47'>
 <area
 href='index.html' alt='Home page' title='Home page'
 shape='poly' coords='150,217,90,257,150,297,110,257'>
</map>

</body>
</html>
This code will display:
Harta de imaginiDate de contact Curs HTML Pagina principala
When you move the cursor over an area in the image, the arrow will turn into a little hand. Each area will open a different web page.

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag defines the clickable areas inside the image map?
<map> <img> <area>
<img src="image.jpg" usemap="#map1">
<map name="map1">
  <area shape="rect" coords="9, 120, 56, 149" href="#">
  <area shape="rect" coords="100, 200, 156, 249" href="#">
</map>
Which CSS property defines what is done if the content in a box is too big for its defined space?
display overflow position
#id {
  overflow: auto;
}
Click on the event which is triggered when the mouse is positioned over an object.
onclick onmouseover onmouseout
document.getElementById("id").onmouseover = function(){
  document.write("Have Good Life");
}
Indicate the PHP variable that contains data added in URL address after the "?" character.
$_SESSION $_GET $_POST
if(isset($_GET["id"])) {
  echo $_GET["id"];
}
Image Map

Last accessed pages

  1. Star shapes with CSS (11114)
  2. Follow the mouse cursor with a DIV inside a Parent (8273)
  3. CSS Course - Free lessons (21648)
  4. SHA256 Encrypt hash in JavaScript (31103)
  5. Calling Function and Class Method with Name from String (5710)

Popular pages this month

  1. Courses Web: PHP-MySQL JavaScript Node.js Ajax HTML CSS (318)
  2. PHP Unzipper - Extract Zip, Rar Archives (110)
  3. Read Excel file data in PHP - PhpExcelReader (101)
  4. SHA1 Encrypt data in JavaScript (81)
  5. Get and Modify content of an Iframe (74)
Chat
Chat or leave a message for the other users
Full screenInchide