/* start preloader */
.preloader
    {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 99999;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        -webkit-flex-flow: row nowrap;
            -ms-flex-flow: row nowrap;
                flex-flow: row nowrap;
        /*justify-content: center;*/
        -webkit-align-items: center;
            -ms-flex-align: center;
                align-items: center;
        background: none repeat scroll 0 0 #fff;
    }
.sk-spinner-rotating-plane.sk-spinner 
    {
         width: 30px;
        height: 30px;
        background-color: #28a7e9;
         margin: 0 auto;
        -webkit-animation: sk-rotatePlane 1.2s infinite ease-in-out;
                animation: sk-rotatePlane 1.2s infinite ease-in-out;
     }

@-webkit-keyframes sk-rotatePlane {
  0% {
         -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
                 transform: perspective(120px) rotateX(0deg) rotateY(0deg); }

  50% {
        -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
                transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }

  100% {
            -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
                    transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }

@keyframes sk-rotatePlane {
  0% {
         -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
                 transform: perspective(120px) rotateX(0deg) rotateY(0deg); }

  50% {
        -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
                transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }

  100% {
            -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
                    transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); } }
/* end preloader */