.game-image{
    position: relative;
    background-image: url(../Images/Tower.jpg);
    background-repeat: no-repeat;
    background-size: contain;
    margin-top: 25px;      
}

.forest{
    position: relative;
    background-image: url(../Images/forest2.jpg);
    background-repeat: no-repeat; 
    background-size: cover;   
}