.btn {
    display: inline-block;
    padding: 0.75em 1em;
    padding-right: 60px;
    margin-bottom: 1em;
    color: rgba(0, 0, 0, 0.7);
    background-color: rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 0, 0, 0.2);
    border-style: solid;
    border-width: 1px;
    border-radius: 0.3em;
    transition: color 0.2s ease 0s, background-color 0.2s ease 0s, border-color 0.2s ease 0s;
    text-decoration: none;
    font-family: sans-serif;
}
.btn:hover {
    color: rgba(0, 0, 0, 0.8);
    text-decoration: none;
    background-color: rgba(170, 240, 80, 0.5);
    border-color: rgba(0, 0, 0, 0.3);
}
.github-mark {
   background: transparent url("../images/GitHub-Mark-32px.png") no-repeat scroll 90% 50%;
   background-clip: border-box;
   background-origin: padding-box;
   background-size: auto auto;
}
.github-mark2 {
   background: rgba(200, 200, 200, 0.4) url("../images/GitHub-Mark-32px.png") no-repeat scroll 90% 50%;
   background-clip: border-box;
   background-origin: padding-box;
   background-size: auto auto;
}
