@import url('https://fonts.googleapis.com/css?family=Nunito+Sans:300,400,700&display=swap');

* {
    font-family: 'Nunito Sans', sans-serif;
}

#load-interface {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #222;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

#load-interface > div {
    width: 64px;
    height: 64px;
}

#load-interface > div div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 51px;
    height: 51px;
    margin: 6px;
    border: 6px solid #fff;
    border-radius: 50%;
    animation: load-interface 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: #fff transparent transparent transparent;
}

#load-interface > div div:nth-child(1) {
    animation-delay: -0.45s;
}

#load-interface > div div:nth-child(2) {
    animation-delay: -0.3s;
}

#load-interface > div div:nth-child(3) {
    animation-delay: -0.15s;
}

#load-interface span {
    color: #fff;
}

@keyframes load-interface {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}