1body{
 2  margin: 0px;
 3}
 4canvas{
 5  width: 100%;
 6  height: 100%;
 7}
 8.own-options{
 9  position: absolute;
10  background: rgba(0, 0, 0, 0.3);
11  margin-top: 10px;
12  margin-left: 10px;
13  padding: 5px;
14}
15.own-msg{
16  position: absolute;
17  background: rgba(0, 0, 0, 0.3);
18  bottom: 10px;
19  right: 10px;
20  padding: 5px;
21}
22
23.own-block{
24  display: block;
25}