.loader-background {
    background-color: #512DA7;
    width: 100%;
    height: 100%;
    position: fixed;
}

.loader-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -30%);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    height: 50%;
}

@keyframes loader {
    0% {
        opacity: 1;
    }
    25% {
        opacity: 0.5;
    }
    50% {
        opacity: 0;
    }
    75% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

@-webkit-keyframes loader {
    0% {
        opacity: 1;
    }
    25% {
        opacity: 0.5;
    }
    50% {
        opacity: 0;
    }
    75% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loader {
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 210px;
}

.loader .loader-bars {
    width: 30px;
    height: 4px;
    background: #149BD5;
    animation-name: loader;
    animation-duration: 3.6s;
    animation-iteration-count: infinite;
    -webkit-animation-name: loader;
    -webkit-animation-duration: 3.6s;
    -webkit-animation-iteration-count: infinite;
}

.loader .loader-bars:nth-child(1) {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s;
}

.loader .loader-bars:nth-child(2) {
    -webkit-animation-delay: -0.8s;
    animation-delay: -0.8s;
}

.loader .loader-bars:nth-child(3) {
    -webkit-animation-delay: -0.6s;
    animation-delay: -0.6s;
}

.loader .loader-bars:nth-child(4) {
    -webkit-animation-delay: -0.4s;
    animation-delay: -0.4s;
}

.loader .loader-bars:nth-child(5) {
    -webkit-animation-delay: -0.2s;
    animation-delay: -0.2s;
}