body{
  padding: 0;
  margin: 0;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 50vh
  min-content
}
h1{
  color: #ffffff;
  font-size:30px;
  font-weight: bold;
  font-family: monospace;
  letter-spacing: 7px;
  cursor: pointer
}
h1 span{
  transition: .5s linear
}
h1:hover span:nth-child(1){
  margin-right: 5px
}
h1:hover span:nth-child(1):after{
  content: "'";
}
h1:hover span:nth-child(2){
  margin-left: 30px
}
h1:hover span{
  color: #fff;
  text-shadow: 0 0 10px #fff,
               0 0 20px #fff, 
               0 0 40px #fff;
}
div {
    color: #ffffff;
    font-size: 20px;
    font-weight: bold;
    font-family: monospace;
    letter-spacing: 10px;
    cursor: pointer
  }
  div span{
    transition: .5s linear
  }
  div :hover span:nth-child(1){
    margin-right: 5px
  }
  div :hover span:nth-child(1):after{
    content: "'";
  }
  div :hover span:nth-child(2){
    margin-left: 30px
  }
  div:hover span{
    color: rgb(0, 0, 0);
    text-shadow: 0 0 10px rgb(0, 0, 0),
                 0 0 20px rgb(0, 0, 0), 
                 0 0 40px rgb(0, 0, 0);
 }
 #A1{
color: rgb(255, 255, 255);

width: fit-content;
height: fit-content;
background-image: url(15..gif);
background-color: red;
animation-name: example;
animation-duration: 5s;
}

@keyframes example {
  from {background-color: rgb(255, 255, 255);}
  to {background-color: rgb(0, 0, 0);}   
}
#A2{
color: rgb(255, 255, 255);

}
#A3{
color: rgb(255, 255, 255);

}
#A4{
color: rgb(255, 255, 255);
}
#A5{
color: rgb(255, 255, 255);
}