body {margin:0}
 .preloader {position:fixed; left:0; top:0; right:0; bottom:0; background:#e0e0e0; z-index:1001}
 .preloader__row {position:relative; top:50%; left:50%; width:70px; height:70px; margin-top:-35px; margin-left:-35px; text-align:center; animation:preloader-rotate 2s infinite linear}
 .preloader__item {position:absolute; display:inline-block; top:0; background-color:#337ab7; border-radius:100%; width:35px; height:35px; animation:preloader-bounce 2s infinite ease-in-out}
 .preloader__item:last-child {top:auto; bottom:0; animation-delay:-1s}
 @keyframes preloader-rotate {100% {transform:rotate(360deg)}
 }
 @keyframes preloader-bounce {0%,100% {transform:scale(0)}
 50% {transform:scale(1)}
 }
 .loaded_hiding .preloader {transition:0.3s opacity; opacity:0}
 .loaded .preloader {display:none}