body {
    font-family: Helvetica sans-serif;
    padding: 0;
    margin: 0;
    background-color: #5C4033;
    overflow: hidden;
    display:grid;
    -webkit-user-select: none;
       -moz-user-select: none;
         -o-user-select: none;
        -ms-user-select: none;
            user-select: none;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
}

.info {
    position: absolute;
    top: 0;
    left: 0;
    padding: 5px 15px;
    color: #eee;
    font-size: 15px;
    background-color: rgba(0, 0, 0, .5);
}

h1 {
  size: 30px;
  color: #FFBB33;
}

div#container {height:500px;width:500px;}

div.a {
width: 50px;
height:50px;
 background-color:red;
position:fixed;

}