html, body 
{
  margin: 0;
  padding: 0;
  overflow: hidden;
}

canvas 
{
  display: block;
}

form
{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

textarea
{
    position: absolute;
    left: 0;
    top: 0;
    width: 30%;
    height: 100%;
    background-color: rgba(0,0,0,0.1);
    border: none;
    padding: 10px;
    font-size: 15px;
}

textarea:focus,textarea:focus-visible,input:focus
{
    border: none;
    outline: none !important;
}

#sub
{
    position: absolute;
    left: 20px;
    bottom: 20px;
}