html, body {
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    background-color: #f2f5f7 !important;
}
nav {
    height: 90px;
    border-bottom: 1px solid rgba(0,0,0,.125);
}
.card {
    margin: 10px;
    border-radius: 1% !important;
    text-align: center;
}
.card-title {
    margin-bottom: 25px !important;
}
footer {
    text-align: center;
    font-size: 14px;
}
.twitter {
    margin-right: 20px;
}
.text-muted a {
    color: #6c757d !important;
}
@media(max-width: 768px) {
    .mobile {
        min-height: 400px;
    }
}
@media(min-width: 768px) {
    .mobile {
        min-height: 550px;
    }
}