html,
                body {
                    width: 100%;
                    height: 100%;
                }
                
                body {
                    background-color: #ffffff;
                    margin: 0;
                    overflow: hidden;
                    font-family: arial;
                }
                
                #blocker {
                    position: absolute;
                    width: 100%;
                    height: 100%;
                    background-color: rgba(0, 0, 0, 0.5);
                }
                
                #passout {
                    width: 100%;
                    height: 100%;
                    background-color: #000;
                    display: none;
                }
                
                #wakeup {
                    width: 100%;
                    height: 100%;
                    background-color: #000;
                    display: block;
                }
                
                #refresh {
                    position: absolute;
                    width: 100%;
                    height: 100%;
                    background-color: #000;
                    display: none;
                }
                
                #refresh span {
                    top: 50%;
                    color: #fff;
                    position: absolute;
                    text-align: center;
                }
                
                #instructions {
                    width: 100%;
                    height: 100%;
                    display: -webkit-box;
                    display: -moz-box;
                    display: box;
                    -webkit-box-orient: horizontal;
                    -moz-box-orient: horizontal;
                    box-orient: horizontal;
                    -webkit-box-pack: center;
                    -moz-box-pack: center;
                    box-pack: center;
                    -webkit-box-align: center;
                    -moz-box-align: center;
                    box-align: center;
                    color: #ffffff;
                    text-align: center;
                    cursor: pointer;
                    canvas {
                        width: 100%;
                        height 100%;
                    }