body {
  margin: 0;
  overflow: hidden;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  background-color: #000;
}

a {
  color: #00B7FF;
}

.video_wrapper {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  background-color: #000;
}

iframe {
  background-color: #000;
  width: 100%;
  flex: 1;
  min-height: 0;
}

.logo_title{
  position: fixed;
  z-index: 10;
  width: 40%;
  top: 15%;
  left: 30%;
}

.logo_title img{
  width: 100%;
}

.box_text{
  text-align: center;
  color: #fff;
  font-size: 3.5vw;
  width: 100%;
  position: fixed;
  bottom: 26%;
}

.text_copyright{
  width: 100%;
  text-align: center;
  color: #fff;
  font-size: 3vw;
  flex-shrink: 0;
  padding: 4px 0;
  position: fixed;
  bottom: 1%;
}

.text_copyright img{
  width: 40vw;
}

@media (pointer: fine) {
  .logo_title,
  .box_text,
  .text_copyright {
    display: none;
  }
}

@media (pointer: fine) and (max-width: 600px) {
  .logo_title,
  .box_text,
  .text_copyright {
    display: block;
  }
}