video { 
  border: 1px solid black;
  padding: 0; margin: 0;
  width: 427px;
  height: 240px;
  background-color: black;
  margin: auto; display: block; margin-bottom: 3px;
}

table { border: none; margin: auto; margin-top: 1ex;}
th {  text-align: right; }
caption { font-size: larger; text-align: left; }
#events td { text-align: right; width: 3ex;}
.true { border: 1px solid #040 }
.false { background-color: #404 }
#buttons { text-align: center; }
#tracks td { text-align: center; }