body {
  margin: 0;
}
.menubar {
	z-index:100;
    position: fixed;
  top: 0;
  left: 0;
  background-color: black;
  width:100%;
}
.menubar a {
  color: yellow;
  /*color: white;*/
  cursor: pointer;
  display: block;
  float: left;
  padding: 0.2em 0.3em;
  text-align: center;
  text-decoration: none;
}
.menubar a:hover {
  background-color: gold;
  color: black;
}
.menubar a.active {
  background-color: orange;
  color: black;
}

.box1 {
    padding: 0.1em 0.5em;
    margin: 0.5em 0;
    border: solid 0.5px #000000;
    background-color: #ccffff;
    position: fixed;
}
.box1 p {
    margin: 0; 
    padding: 0;
}
.video_wrapper {
    position: relative;
    width: 100vw
    height: 100vh;
    overflow: hidden;
}

.video_wrapper > video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    min-width: 100%;
    min-height: 100%;
}