Instructions
<head>
...
<link rel="stylesheet" type="text/css" href="your_website_domain/css_root/science.css">
...
</head>
3Use the icon class on "display: inline" elements:
Use example:
<i class="science-airplane49"></i>
or
<span class="science-airplane49"></span>
<i class="science-001-skull"></i>
<i class="science-002-plant"></i>
<i class="science-003-moon"></i>
<i class="science-004-bacteria"></i>