#game{
    width:500px;
    height:500px;
    margin:auto;
    border:3px solid #FF4B3E;
    background-color:white;
}
#btn{
    background-color:#FF4B3E;
    color:#6A9869;
    margin:1rem auto;
    display:block;
    font-size:1.25em;
    padding:0.5rem 2rem;
    border-radius:2rem;
    border:3px solid #6A9869 ;
}
#btn:active{
    background-color:#6A9869;
    color:#FF4B3E;
    border:3px solid #FF4B3E;
}
.slider{
    height:20px;
    width:100px;
    background-color:#6A9869;
    position:relative;
    visibility:hidden;
    
}

#slider1{
    visibility:visible;
}
.animate{
    animation:slide 4s infinite linear;
    
}
@keyframes slide{
    0%{left:0px;}
    50%{left:400px;}
    100%{left:0px;}
    
    
}