How to do this.
1.Go to your dashboard and click on design.
4. Go to layout and select add a gadget .
Add this code in the HTML/Java script widget box
<link rel="stylesheet" type="text/css" href="http://www.heartinternet.co.uk/eu-cookie/main.css"/>
<link rel="stylesheet" type="text/css" href="http://www.heartinternet.co.uk/eu-cookie/white.css"/>
7. Save the gadget and position the gadget at the footer of your blog.
If you have followed the instructions properly you will see this on your homepage.
NB- For word press blogs check this page.