nav header i.material-icons {
  display: none ;
}/*only screen and*/
@media  (max-width:900px) {
   container, .card {
     margin:0px;
     max-width:9999px;
   }

   .card h1.covered {
     border-radius: 0px;
     text-align: center;
}
holder {
  margin-top:80px !important;
}
@keyframes slideUpCard {
  0% { opacity: 0.2; margin-top:120px;}
  100% {opacity:1; margin-top:80px;}
}
container.sidebar {
  margin-top: 50px;
}
nav header i.material-icons {
  display: inline-block !important;
  position: fixed;
  left: 4px;
  font-size: 34px;
  color: #444;
}
.sidebarMinimised container.sidebar {
  left:-300px;
}
.sidebarMinimised header {
  left:-300px;
  transition:left .4s, color .1s;
  color:transparent;
}
.sidebarMinimised holder {
  margin-left:0px;
}
.sidebarMinimised #pageTitle {
  margin-left:80px;
  transition:all .4s;
  font-size:20px;
  padding-top:2px;
  height:30px;
  overflow: hidden;
}
   holder > container.on, holder > div.on {

   }


}/*only screen and*/
@media (min-width:900px) and (max-width:1200px) {
   .card {
      max-width:640px;
   }
}
@media  (max-width:640px) {

     holder {
       margin-left:0px !important;
     }
     container.sidebar {
       z-index: 99;
       background:#F1F1F1;
     }
     body:not(.sidebarMinimised) header {
       box-shadow: 0px 3px 9px #666;
     }
     body:not(.sidebarMinimised) container.sidebar {
         box-shadow: 3px 3px 9px #999;
       }

     body:not(.sidebarMinimised) #pageTitle {
       color:transparent;
       margin-top: -23px;
     }
     container.sidebar::after {
       top: 0;
       right: 0;
       bottom: 0;
       left:100%;
       content: "";
       position: fixed;
       opacity:0;
       transition:opacity .4s;
     }
     body:not(.sidebarMinimised) container.sidebar::after {
       content: " ";
       display: block;
       position: fixed;
       background: #333;
       opacity: .5;
       z-index: 95;
       left: 300px;
       /* animation:wait .8s; */
     }
}
@keyframes wait {
   0% {opacity: 0;}
   40% {opacity: 0;}
   100% {opacity: .5;}
}