.about-content {
    background-image: url("../img/about-bg.png");
    background-position: 0 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

@-webkit-keyframes about-move-bg-keyframes {
    from {
        background-position: 0 0;
    }
    to { 
        background-position: 10px;
    }
 }
 
 @keyframes about-move-bg-keyframes {
    from {
        background-position: 0 0x;
    }
    to { 
        background-position: 32px 64px;
    }
 }
 
 .about-move-bg{
   animation-name: about-move-bg-keyframes;
   animation-duration: 1s;
   animation-timing-function: linear;
   animation-iteration-count: infinite;
   animation: about-move-bg-keyframes 1s linear infinite;
   -webkit-animation-name: about-move-bg-keyframes;
   -webkit-animation-duration: 1s;
   -webkit-animation-timing-function: linear;
   -webkit-animation-iteration-count: infinite;
   -webkit-animation: about-move-bg-keyframes 1s linear infinite;
 }