index.css

@import url('https://fonts.googleapis.com/css?family=Comfortaa|Montserrat');

html, body {
    height: 100%;
    margin: 0;
}

#background {
    z-index: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    background-color: #1282a2;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.title-wrapper {
    width: 300px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.title-text {
    font-family: Comfortaa, Arial sans-serif;
    font-size: 3rem;
    color: white;
}

.loading-wrapper {
    position: relative;
    left: -50px;
    top: 150px;
}

.loading-symbol {
    left: -100px;
    top: -100px;
    -webkit-animation: xAxis 2.5s infinite cubic-bezier(0.02, 0.01, 0.21, 1);
    animation: xAxis 2.5s infinite cubic-bezier(0.02, 0.01, 0.21, 1);
}
  
.loading-symbol::after {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 5px;
    background-color: #fff;
    -webkit-animation: yAxis 2.5s infinite cubic-bezier(0.3, 0.27, 0.07, 1.64);
    animation: yAxis 2.5s infinite cubic-bezier(0.3, 0.27, 0.07, 1.64);
}

@-webkit-keyframes yAxis {
    50% {
        -webkit-animation-timing-function: cubic-bezier(0.02, 0.01, 0.21, 1);
        animation-timing-function: cubic-bezier(0.02, 0.01, 0.21, 1);
        -webkit-transform: translateY(-100px);
        transform: translateY(-100px);
    }
}
  
@keyframes yAxis {
    50% {
        -webkit-animation-timing-function: cubic-bezier(0.02, 0.01, 0.21, 1);
        animation-timing-function: cubic-bezier(0.02, 0.01, 0.21, 1);
        -webkit-transform: translateY(-100px);
        transform: translateY(-100px);
    }
}

@-webkit-keyframes xAxis {
    50% {
        -webkit-animation-timing-function: cubic-bezier(0.3, 0.27, 0.07, 1.64);
        animation-timing-function: cubic-bezier(0.3, 0.27, 0.07, 1.64);
        -webkit-transform: translateX(100px);
        transform: translateX(100px);
    }
}

@keyframes xAxis {
    50% {
        -webkit-animation-timing-function: cubic-bezier(0.3, 0.27, 0.07, 1.64);
        animation-timing-function: cubic-bezier(0.3, 0.27, 0.07, 1.64);
        -webkit-transform: translateX(100px);
        transform: translateX(100px);
    }
}