.bloader {
    margin:auto;
    left:0;
    right:0;
    top:0;
    bottom:0;
    position:fixed;  
    z-index: 99;
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid # 379b;
    border-bottom: 16px solid #379b;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
  }