body {
    min-height: 100vh;
}

main {
    min-height: 100%;
}

.container.nav-menu {
    position: sticky;
    top: 0;
    height: auto;
    z-index: 100;
}

.container.content {
    min-height: 100%;
    padding-bottom: 50px;
}

.container.content h4 {
    color: #d9534f;
}

.container p {
    font-size: .96rem;
}

.btn-nav {
    font-weight: bold;
    border-radius: 0;
    border: solid 1px #fff;
}

.btn-nav.disabled {
    background-color: #2b080b;
    border-color: #fff;
    opacity: 1;
}

.banner {
    position: relative;
    overflow: hidden;
}

@keyframes sign-movement {
    from {right: -10rem;}
    to {right: 10rem;}
}

.ribbon {
    display: flex;
    min-width: 10rem;
    height: 1.25rem;
    position: absolute;
    background-color: #e2363f;
    transform: rotate(-45deg);
    -webkit-transform: rotate(-45deg);
    border: solid 1px #861319;
    font-weight: bolder;
    left: -30px;
    top: 30px;
    white-space: nowrap;
    overflow: hidden;
    box-shadow: 0 3px 7px 0;
    transition: opacity 0.75s;
}

.transparent {
    opacity: 0;
}

.ribbon .sign {
    font-size: 12px;
    position: absolute;
    animation: sign-movement 8s linear infinite;
}

.ribbon .sing-en {
    right: -10rem;
}

.ribbon .sing-bg {
    right: 5rem;
    animation-delay: -4s;
}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
}

.footer {
    background-color: #2b080b;
    color: #dc3545;
    font-size: .8rem;
    opacity: .9;
}

.page-title {
    font-style: italic;
    margin: 2rem auto 1rem auto;
}

.page-divider {
    border: solid 1px #d9534f;
}

.img-link {
    color: inherit;
    display: flex;
    flex-flow: column;
    align-items: center;
    justify-content: start;
}

.img-link:hover {
    color: inherit;
}