body {
    font-family: sans-serif;
    background-color: white;
    color: black;
    overflow: hidden;
}

button {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 25rem;
    height: 25rem;
    border: none;
    background-color: white;
}
img {
    -webkit-user-select: none; /* Safari */        
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* IE10+/Edge */
    user-select: none; /* Standard */
}



img {
    user-select: none;
    width: 100%;
    height: auto;
    
}

button:active {
   width: 20rem;
   height: 20rem;
}