body {
    background-color: #f5f5f0;
    padding: 50px;
}
h1 {
    font-size: 24px;
}
section#open_source {
    height: 380px;
}
ul li {
    padding: 5px 0;
}
footer {
}
/* mobile */
@media (max-width: 769px) {
    body {
	padding: 10px;
    }
    ul {
	margin-left: -15px;
    }
}