app/assets/stylesheets/styles/_footer.css.erb
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footer {
display: block;
position: absolute;
bottom: 0;
width: 100%;
font-size: 2em;
text-align: center;
vertical-align: middle;
}
footer a {
display: inline-block;
margin-right: -4px;
padding: 1.5em 0.3em;
vertical-align: middle;
transition: opacity 0.15s ease-in-out;
}
footer a:hover { text-decoration: none; }
footer a img { width: 30px; vertical-align: middle; }
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