#myVideo {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%;
  min-height: 100%;
}

.content {
  margin: auto;
  position: relative;
  align-content: center;
  border-radius: 25px;
  background: rgba(0, 0, 0, 0.5);
  color: #D6FF33;
  font-family: "Helvetica", "sans-serif";
  font-size: 20px;
  width: 450px;
  padding: 10px;
} 

.img {
  max-width: 100%;
  height: auto;
 }