/* Center the loader */

#mask {
 display:none;
 position: absolute;
 width: 100%;
 height:100%;
 z-index: 1;
 background-color: #dddddd;
 opacity:0.8;
}

#loader {
 display:block;
 position: relative;
 left: 50%;
 top: 50%;
 z-index: 2;
 width: 90px;
 height: 90px;
 margin: -45px 0 0 -45px;
 border: 12px solid #f3f3f3;
 border-radius: 50%;
 border-top: 12px solid #3498db;
 -webkit-animation: spin 2s linear infinite;
 animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Add animation to "page content" */
.animate-bottom {
  position: relative;
  -webkit-animation-name: animatebottom;
  -webkit-animation-duration: 1s;
  animation-name: animatebottom;
  animation-duration: 1s
}

@-webkit-keyframes animatebottom {
  from { bottom:-100px; opacity:0 } 
  to { bottom:0px; opacity:1 }
}

@keyframes animatebottom { 
  from{ bottom:-100px; opacity:0 } 
  to{ bottom:0; opacity:1 }
}