.spinner {
    display: block;
    margin: 0% auto;
    position: absolute;
    width: 170px;
    height: 65px;
    top: -30px;
}

@media screen and (max-width: 550px) {
    .spinner {
        width: 130px;
        height: 60px;
    }
}

@-webkit-keyframes pulse {
    0% {
        opacity: 0;
        background-position: center top;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
    10% {
        opacity: 0;
    }
    50% {
        opacity: 1;
        -moz-background-size: 20% auto;
        -o-background-size: 20% auto;
        -webkit-background-size: 20% auto;
        background-size: 20% auto;
    }
    90% {
        opacity: 0;
    }
    100% {
        opacity: 0;
        background-position: center bottom;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
}

@-moz-keyframes pulse {
    0% {
        opacity: 0;
        background-position: center top;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
    10% {
        opacity: 0;
    }
    50% {
        opacity: 1;
        -moz-background-size: 20% auto;
        -o-background-size: 20% auto;
        -webkit-background-size: 20% auto;
        background-size: 20% auto;
    }
    90% {
        opacity: 0;
    }
    100% {
        opacity: 0;
        background-position: center bottom;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
}

@-ms-keyframes pulse {
    0% {
        opacity: 0;
        background-position: center top;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
    10% {
        opacity: 0;
    }
    50% {
        opacity: 1;
        -moz-background-size: 20% auto;
        -o-background-size: 20% auto;
        -webkit-background-size: 20% auto;
        background-size: 20% auto;
    }
    90% {
        opacity: 0;
    }
    100% {
        opacity: 0;
        background-position: center bottom;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
}

@keyframes pulse {
    0% {
        opacity: 0;
        background-position: center top;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
    10% {
        opacity: 0;
    }
    50% {
        opacity: 1;
        -moz-background-size: 20% auto;
        -o-background-size: 20% auto;
        -webkit-background-size: 20% auto;
        background-size: 20% auto;
    }
    90% {
        opacity: 0;
    }
    100% {
        opacity: 0;
        background-position: center bottom;
        -moz-background-size: 0 auto;
        -o-background-size: 0 auto;
        -webkit-background-size: 0 auto;
        background-size: 0 auto;
    }
}

.scroll-down a {
    display: block;
    opacity: 0;
    -moz-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    -webkit-transition: all 0.4s ease;
    transition: all 0.4s ease;
    line-height: 0;
    font-size: 0;
    color: transparent;
    margin-left: auto;
    margin-right: auto;
    -moz-background-size: 0 auto;
    -o-background-size: 0 auto;
    -webkit-background-size: 0 auto;
    background-size: 0 auto;
    -webkit-animation: pulse 1.5s 0s infinite normal ease forwards;
    -moz-animation: pulse 1.5s 0s infinite normal ease forwards;
    -o-animation: pulse 1.5s 0s infinite normal ease forwards;
    animation: pulse 1.5s 0s infinite normal ease forwards;
    background-image: url(./assets/Vector159.svg);
    background-repeat: no-repeat;
}

.scroll-down a:before,
.scroll-down a:after {
    content: " ";
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background: url(./assets/Vector159.svg) no-repeat center top;
    -moz-background-size: 100% auto;
    -o-background-size: 100% auto;
    -webkit-background-size: 100% auto;
    background-size: 100% auto;
}

.scroll-down a:before {
    -webkit-animation: pulse 1.5s 0.25s infinite normal ease forwards;
    -moz-animation: pulse 1.5s 0.25s infinite normal ease forwards;
    -o-animation: pulse 1.5s 0.25s infinite normal ease forwards;
    animation: pulse 1.5s 0.25s infinite normal ease forwards;
}

.scroll-down a:after {
    -webkit-animation: pulse 1.5s 0.5s infinite normal ease forwards;
    -moz-animation: pulse 1.5s 0.5s infinite normal ease forwards;
    -o-animation: pulse 1.5s 0.5s infinite normal ease forwards;
    animation: pulse 1.5s 0.5s infinite normal ease forwards;
}