body {
    background: #009688;
    overflow: hidden;
    font-family: "Open Sans", sans-serif;
}

.loop-wrapper {
    margin: 0 auto;
    position: relative;
    display: block;
    width: 600px;
    height: 250px;
    overflow: hidden;
    border-bottom: 3px solid #fff;
    color: #fff;
}

.mountain {
    position: absolute;
    right: -900px;
    bottom: -20px;
    width: 2px;
    height: 2px;
    box-shadow: 0 0 0 50px #4db6ac, 60px 50px 0 70px #4db6ac,
        90px 90px 0 50px #4db6ac, 250px 250px 0 50px #4db6ac,
        290px 320px 0 50px #4db6ac, 320px 400px 0 50px #4db6ac;
    transform: rotate(130deg);
    animation: mtn 20s linear infinite;
}

.hill {
    position: absolute;
    right: -900px;
    bottom: -50px;
    width: 400px;
    border-radius: 50%;
    height: 20px;
    box-shadow: 0 0 0 50px #4db6ac, -20px 0 0 20px #4db6ac,
        -90px 0 0 50px #4db6ac, 250px 0 0 50px #4db6ac, 290px 0 0 50px #4db6ac,
        620px 0 0 50px #4db6ac;
    animation: hill 4s 2s linear infinite;
}

.tree,
.tree:nth-child(2),
.tree:nth-child(3) {
    position: absolute;
    height: 100px;
    width: 35px;
    bottom: 0;
    background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/130015/tree.svg) no-repeat;
}

.rock {
    margin-top: -17%;
    height: 2%;
    width: 2%;
    bottom: -2px;
    border-radius: 20px;
    position: absolute;
    background: #ddd;
}

.truck,
.wheels {
    transition: all ease;
    width: 85px;
    margin-right: -60px;
    bottom: 0px;
    right: 50%;
    position: absolute;
    background: #eee;
}

.truck {
    background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/130015/truck.svg) no-repeat;
    background-size: contain;
    height: 60px;
}

.truck:before {
    content: " ";
    position: absolute;
    width: 25px;
    box-shadow: -30px 28px 0 1.5px #fff, -35px 18px 0 1.5px #fff;
}

.wheels {
    background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/130015/wheels.svg) no-repeat;
    height: 15px;
    margin-bottom: 0;
}

.tree {
    animation: tree 3s 0s linear infinite;
}

.tree:nth-child(2) {
    animation: tree2 2s 0.15s linear infinite;
}

.tree:nth-child(3) {
    animation: tree3 8s 0.05s linear infinite;
}

.rock {
    animation: rock 4s -0.53s linear infinite;
}

.truck {
    animation: truck 4s 0.08s ease infinite;
}

.wheels {
    animation: truck 4s 0.001s ease infinite;
}

.truck:before {
    animation: wind 1.5s 0s ease infinite;
}

@keyframes tree {
    0% {
        transform: translate(1350px);
    }

    50% {}

    100% {
        transform: translate(-50px);
    }
}

@keyframes tree2 {
    0% {
        transform: translate(650px);
    }

    50% {}

    100% {
        transform: translate(-50px);
    }
}

@keyframes tree3 {
    0% {
        transform: translate(2750px);
    }

    50% {}

    100% {
        transform: translate(-50px);
    }
}

@keyframes rock {
    0% {
        right: -200px;
    }

    100% {
        right: 2000px;
    }
}

@keyframes truck {
    0% {}

    6% {
        transform: translateY(0px);
    }

    7% {
        transform: translateY(-6px);
    }

    9% {
        transform: translateY(0px);
    }

    10% {
        transform: translateY(-1px);
    }

    11% {
        transform: translateY(0px);
    }

    100% {}
}

@keyframes wind {
    0% {}

    50% {
        transform: translateY(3px);
    }

    100% {}
}

@keyframes mtn {
    100% {
        transform: translateX(-2000px) rotate(130deg);
    }
}

@keyframes hill {
    100% {
        transform: translateX(-2000px);
    }
}