style.css

body {
    background-color: #5f1760;
    margin: 0;
    padding: 0;
}

.wrapper {
    height: 420px;
    width: 350px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);

}

.container {
    height: 350px;
    width: 350px;
    position: absolute;
    -webkit-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    transform: rotate(-45deg);
    top: 0;
    left: 0;
}

.roller {
    height: 45px;
    width: 150px;
    border: 5px solid #040e15;
    border-radius: 7px;
    background-image: -webkit-gradient(
        linear,
        left top,
        left bottom,
        color-stop(0, #ffca3e),
        color-stop(80%, #ffca3e),
        color-stop(80%, #fc8f2e)
    );
    background-image: -o-linear-gradient(
        top,
        #ffca3e 0,
        #ffca3e 80%,
        #fc8f2e 80%
    );
    background-image: linear-gradient(
        to bottom,
        #ffca3e 0,
        #ffca3e 80%,
        #fc8f2e 80%
    );
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    top: 0;
    -webkit-animation: roller 2s infinite;
    animation: roller 2s infinite;
}

@-webkit-keyframes roller {
    40% {
        top: 165px;
    }
}

@keyframes roller {
    40% {
        top: 165px;
    }
}

.roller::before {
    position: absolute;
    content: '';
    background-color: rgba(255, 255, 255, .7);
    height: 7px;
    width: 75px;
    top: 8px;
    left: 8px;
    border-radius: '0px';
}

.roller::after {
    position: absolute;
    content: '';
    height: 40px;
    width: 85px;
    border: 7px solid #040e15;
    border-left: none;
    right: -20px;
    top: 20px;
    z-index: -1;
    border-radius: 7px;
}

.handle {
    height: 30px;
    width: 7px;
    background-color: #040e15;
    position: absolute;
    top: 68px;
    right: 65px;
}

.handle::after {
    position: absolute;
    content: '';
    height: 75px;
    width: 25px;
    background-color: #040e15;
    bottom: -75px;
    right: -8px;
    border-radius: 5px;
}

.paint {
    background-color: #ffca3e;
    height: 0;
    width: 130px;
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    z-index: -1;
    -webkit-animation: paint 2s infinite;
    animation: paint 2s infinite;
}

@-webkit-keyframes paint {
    40% {
        height: 165px;
    }
}

@keyframes paint {
    40%{
        height: 165px;
    }
}