style.css

* {
    -webkit-font-smoothing: antialiased;
    -webkit-user-select: none;
    -moz-user-select: -moz-none;
    user-select: none;
    margin: 0 auto; 
    font-family: sans-serif;
    overflow: hidden;
  }
  
  
  body {
    background-color: none;
    background-size: contain;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    height: 100%;
    place-items: center center;
    margin: 0 auto; 
    font-family: 'Roboto Mono', monospace;

  }
  

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

  #botonmenu{
    position: absolute;
    top: 45%;
    left: 30%;
    max-width: fit-content;
    display: block;
    background-color: transparent;
    border: none;
    z-index: 900;
  }

  #botonmenu:hover{
    filter: drop-shadow(0 0 0.5rem rgb(255, 255, 255));
}


.readinglink{
  position: absolute;
  top: 1%;
  right: 1%;
  display: block;
  background-color: transparent;
  border: none;
  z-index: 900;
  max-width: 100%;
  height: auto;
}


.hover {
  pointer-events: none;
  display: inline-block;
  position: absolute;
}

 
.readingimg {
  display: none;
  width: 40%;
  
}

.readinglink:hover+.readingimg  {
  display: inline-block;
  position:absolute;
  right: 0%;
  z-index: 1000;
  width: auto;
  height: 100%;
  }