body{
  margin: 0px;
}
canvas{
  width: 100%;
  height: 100%;
}
.own-options{
  position: absolute;
  background: rgba(0, 0, 0, 0.3);
  margin-top: 10px;
  margin-left: 10px;
  padding: 5px;
}
.own-msg{
  position: absolute;
  background: rgba(0, 0, 0, 0.3);
  bottom: 10px;
  right: 10px;
  padding: 5px;
}

.own-block{
  display: block;
}