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Font Size Increase/Decrease

Posted on 2015-01-05
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Last Modified: 2015-01-15
Hello,

I have a website and I need put in a increase font section... i have the three graphics already inplace but I don't know how to make the buttons work....   Can anyone help with the code for this??

Here is the website address for the site i am using..

ckhatest.jadeddesigns.ca

Thank you,
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Question by:cookmyster
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5 Comments
 
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Expert Comment

by:Rob Jurd, EE MVE
ID: 40532613
With jQuery:

I've used * for all elements, however you may want to just to p elements or divs or spans etc
jQuery(function() {
jQuery('#id_of_increase_btn').on('click', function() {
// to increase
jQuery('*').css('font-size', function(i, size) { return parseFloat(size)*1.2; });
});    

jQuery('#id_of_decrease_btn').on('click', function() {
// to decrease
jQuery('*').css('font-size', function(i, size) { return parseFloat(size)/1.2; });
});

});

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Accepted Solution

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Rob Jurd, EE MVE earned 500 total points
ID: 40532620
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Author Comment

by:cookmyster
ID: 40533389
Hey Rob,

when i put the javascript into a .js file and call it form the page I am working on... it doesn't seem to work.. but when i put al the javascript on the same page.. it works??  not sure what i am doing wrong

Rich
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LVL 42

Expert Comment

by:Rob Jurd, EE MVE
ID: 40533464
Yeah it shouldn't matter so how are you including it and where in your page?
Is the code exactly the same whether in the page or in an external file?
Regardless the code has to be within a $(function() {...}) initialization or a function that is called after the page had loaded.
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Author Closing Comment

by:cookmyster
ID: 40552174
Awesome!!!  thank you very much
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