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I've been working on a responsive site and have come to a bit of a problem with Image Maps. It seems that Image Maps don't work with Percentage based co-ordinates. After a bit of googling I found a JS workaround - http://mattstow.com/experiment/responsive-image-maps/rwd-image-maps.html. However I want the site to work with JS disabled.
So after exhausting those possibilities I decided to look into using relatively positioned Anchor tags over the images to do the same thing. This is a better option anyway IMO. I've tried to place the anchor tags over the image with percentage based position and size, but whenever I rescale the browser the anchor tags move disproportionately to the image.
HTML:
<div id="block">
<div>
<img src="http://www.wpclipart.com/toys/blocks/abc_blocks.png">
</div>
<a href="#" class="one"></a>
<a href="#" class="two"></a>
</div>
CSS:
#block img {
max-width: 100%;
display: inline-block;
}
a.one{
height:28%;
width:19%;
top:-36%;
left:1%;
position:relative;
display:block;
}
a.two{
height:28%;
width:19%;
top:37%;
left:36%;
position:absolute;
}
Here's a jsFiddle to describe what I mean - http://jsfiddle.net/wAf3b/10/. When I resize the HTML box everything becomes skewed.
Any help much appreciated.
828
Image maps, however, are not natively responsive. That means that if the image scale needs adjustments due to a browser's window being resized or the page being viewed on a mobile device, the image map and its clickable area will not scale down with the screen size.
To use image as a link in HTML, use the <img> tag as well as the <a> tag with the href attribute. The <img> tag is for using an image in a web page and the <a> tag is for adding a link. Under the image tag src attribute, add the URL of the image.
You'll have to set dimensions on the a tag, and set it to display: block; . Of course replace dimensions with the correct ones. If you add the image directly to the a tag like you have at the bottom of your answer, the anchor seems to overflow underneath the image a little bit.
.img-thumbnail. Shapes the image to a thumbnail. Try it. .img-responsive. Makes an image responsive (will scale nicely to the parent element)
You had a few problems with your CSS in the fiddle you posted (as well as a missing closing div tag). After making sure that #block was relatively positioned, not 100% height, and that your anchors were block/absolutely positioned, I was able to get the tags to move with the blocks.
Here is the updated fiddle:
http://jsfiddle.net/wAf3b/24/
CSS
html, body {
height: 100%;
}
#block{ float:left; width:100%; max-width: 400px; position: relative; }
#content{
height: 100%;
min-height: 100%;
}
#block img {
max-width: 100%;
display: inline-block;
}
a.one{ height:28%; width:25%; position: absolute; top:55%; left:5%; display:block; background:rgba(0,255,0,0.5);}
a.two{ height:28%; width:25%; position: absolute; top:60%; left:70%; display: block; background:rgba(255,0,0,0.5);}
HTML
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link href="stylesheets/screen.css" media="screen, projection" rel="stylesheet" type="text/css" />
<title>Bulky Waste</title>
</head>
<body>
<div id="content">
<div id="block">
<div>
<img src="http://www.wpclipart.com/toys/blocks/abc_blocks.png">
</div>
<a href="#" class="one"></a>
<a href="#" class="two"></a>
</div>
</div><!--/content-->
</body>
</html>
One important thing to note with the new html is the use of DOCTYPE. For some reason, some browsers don't like it when it is not capitalized.
145
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