body {
  text-align: center;
}

.button-wrapper{
  text-align: center;
  margin: 10px;
}

#wave {
  background-color: #f44336;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  cursor: pointer;
  border: none;
  border-radius: 15px;
  box-shadow: 0 9px #999;
}

#wave:active {
  background-color: red;
  box-shadow: 0 5px #666;
  transform: translateY(4px);
}

.video-wrapper{
  margin: auto;
  padding: 20px;
  width: 50%;
}

#videoElement {
   width:80%;
   display: block;
}

#start-cam {
  background-color: grey;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline;
    cursor: pointer;
}