.bottomProgressBar {
     position:absolute;               
     width:100%;
     height:4px;
     background:#cceeff;
     overflow:hidden;
 }

 .bottomProgressBar div:before {
     content:"";
     position:absolute;
     top:0px;
     left:0px;
     bottom:0px;
     background:#0088cc;
     -ms-animation:box-1 2100ms cubic-bezier(0.65,0.81,0.73,0.4) infinite;
     -webkit-animation:box-1 2100ms cubic-bezier(0.65,0.81,0.73,0.4) infinite;
     animation:box-1 2100ms cubic-bezier(0.65,0.81,0.73,0.4) infinite;
 }

 .bottomProgressBar div:after {
     content:"";
     position:absolute;
     top:0px;
     left:0px;
     bottom:0px;
     background:#0088cc;
     -ms-animation:box-2 2100ms cubic-bezier(0.16,0.84,0.44,1) infinite;
     -webkit-animation:box-2 2100ms cubic-bezier(0.16,0.84,0.44,1) infinite;
     animation:box-2 2100ms cubic-bezier(0.16,0.84,0.44,1) infinite;
     -webkit-animation-delay:1150ms;
     animation-delay:1150ms;
 }

 @keyframes box-1 {
     0% {
         left:-35%;
         right:100%;
     }
     60%,100% {
         left:100%;
         right:-90%;
     }
 }
 @keyframes box-2 {
     0% {
         left:-200%;
         right:100%;
     }
     60%,100% {
         left:107%;
         right:-8%;
     }
 }