body{
    font-family:Helvetica;
    background-color: rgb(11, 110, 42, .4);
    color: beige;
    overscroll-behavior: none;
}

#content{
    position:absolute;
    top: 50%;
    left:50%;
    transform:translate(-50%,-50%);
    text-align: center;
}
button{
    cursor:crosshair;
    border:none;
    padding:2px 10px 2 px 10px;
    height: 40px;
    border-radius: 10px;
    background-color: aquamarine;
    color:coral;
}
button:hover{
    background-color:lime;
}

button:disabled,
button:disabled:hover{
    background-color: gray;
    cursor:not-allowed;
}