body { margin: 0; width:100%; height:100%; overflow:hidden; }
canvas { width: 100%; height: 100% }
.gui
{
    pointer-events:none;
    font-family:sans-serif;
    position:absolute;
    z-index:3;
    bottom:0px;
    height:9vh;
    width:100%;
    background:rgba(0,0,0,0.5);
    color:white;
}
.staminabar
{
    position:absolute;
    top:50%;
    left:10px;
    transform:translateY(-50%);
    width:10vw;
    background:#808080;
    height:5vh;
}
.staminabar_filled
{
    display:block;
    position:absolute;
    top:0px;
    left:0px;
    width:30%;
    height:100%;
    background:#c0c17e;
}
.life
{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    right:10px;
    font-size:5vh;
    text-transform:uppercase;
    text-shadow:0px 0px 2px #000;
}