Андрей Мартынкевич

let event = new Event("Название события")
Element.dispatchEvent(event);
Element.innerText = 'ввод чего-то';

ul{
  margin: 0 -25px;
  list-style: none;
  display: flex;
  justify-content: space-between
}
li{
  margin: 0 25px;
}

a{
  text-decoration: none;
  color: black;
}

#logo{
  margin: 0 auto;
}

.logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    z-index: 4;
    text-align: center;
}

<div class="intro">
  <div class="video">
    <video src="video.mp4" class="video_media" autoplay muted loop></video>
  </div>
  <div class="logo">
    <div>
     <h1>KATYA LEER</h1>
     <span>makeup</span>
    </div>
  </div>
</div>

.logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 4;
    text-align: center;
}