body {
    padding: 0;
}

.nav > li {
    display: inline-block;
    margin-right: 50px;
    font-size: 14px;
    letter-spacing: 3px;
    list-style: none;
}

.nav > li > a {
    transition: all .3s ease;
    color: #333;
    text-decoration: none;
    opacity: 0.7;
}

.nav .active, .nav > li > a:hover {
    color: #1890FF;
    opacity: 1;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -50px;
    width: 100px;
    height: 60px;
    text-align: center;
    font-size: 10px;
    z-index: 1;
}

#loading > div {
    height: 100%;
    width: 8px;
    display: inline-block;
    animation: stretchdelay 1.2s infinite ease-in-out;
    background: #1890FF;
}

#loading :nth-child(2) {
    animation-delay: -1.1s;
}

#loading :nth-child(3) {
    animation-delay: -1s;
}

#loading :nth-child(4) {
    animation-delay: -.9s;
}

#loading :nth-child(5) {
    animation-delay: -.8s;
}

@keyframes stretchdelay {
    0%, 40%, 100% {
        transform: scaleY(0.4);
    }
    20% {
        transform: scaleY(1.0);
    }
}
