html, body, h1, h2, h3, h4, h5 {
  background-color: #4e4e4e;
  vertical-align: baseline;
}

/* Style the button that is used to open and close the collapsible video */
.button {
  background-color: #aaaaaa;
  border-radius: 15px;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}

/* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
.active, .button:hover {
  background-color: #ccc;
}

/* Style the collapsible video. Note: hidden by default */
.video {
  padding: 0 18px;
  display: none;
  overflow: hidden;
  background-color: #4e4e4e;
  width 100%;
  height 240px;
}