body {
  z-index: 0;
  background-image: url(Bilder/U20DM.jpg);
}
#link1, #link2 {
    color: black;
    text-decoration: none;
    border-style: outset; 
    border-color: lightsteelblue lightsteelblue lightsteelblue ;  
    border-width: 2px 4px;
    background-color: whitesmoke;
    border-radius: 3px;
    padding: 1px 2px 2px 1px;

    
}
#link1 {
    margin-right: 20px;
}
#version1 {
  display: inline-block;
  -webkit-mask: linear-gradient(-60deg,#000 30%,#0005,#000 70%) right/300% 100%;
  mask: linear-gradient(-60deg,#000 30%,#0005,#000 70%) right/300% 100%; /*Bessere Kompatibilität für Browser ohne Webkit*/
  background-repeat: no-repeat;
  animation: shimmer 2.5s infinite;
  font-size: 20px;
  max-width:200px;
}
@keyframes shimmer {
    100% {-webkit-mask-position:left}
  }
  #changesnotes {
    z-index: 1;
    display: none;
    position: absolute;
    background-color: #FAF9F6;
    height: 90%;
    width: 90%;
    left: 0; 
    right: 0; 
    margin-left: auto; 
    margin-right: auto; 
    padding: 10px 10px;
    -moz-box-shadow: 0 0 3px #363535;
  -webkit-box-shadow: 0 0 3px #363535;
   box-shadow: 0 0 3px #363535;
   backdrop-filter: blur(10px);
   border-radius: 10px;
  }
  #close {
    float: right;
    border: none;
    background-color: #FAF9F6;
  }
  #close:hover {
    font-weight: bold;
  }