.navbar {
    text-align: center;
    background-color: black;
    color: rgb(22, 224, 11);
    padding: 10px;
    width: 100%;
    top: 0;
    position: fixed;
}

.navbar a {
    margin: 50px 30px 100px 30px;
    font-weight: bold;
    font-size: 20px;
    color: white;
    background-color: black;
    border-radius: 25%;
    text-decoration: none;
}
.navbar a:hover {
    color: green;
}
span {
    color: yellow;
}
footer {
    text-align: center;
    bottom: 0px;
    background-color: black;
    color: white;
    padding: 5px;
}
.game-container{
    text-align: center;
    color: rgb(22, 224, 11);
    background-color: whitesmoke;
    padding: 20px 0 20px 0;
    margin: 150px 25% 30px 25%;
    font-size: 30px;
}

.game-container a {
    margin: 50px 30px 50px 30px;
    padding: 40px 15px 40px 15px;
    font-weight: bold;
    font-size: 20px;
    color: white;
    background-color: black;
    border-radius: 25%;
    text-decoration: none;
}
.game-container a:hover{
    color: black;
    background-color: rgb(22, 224, 11);
}
.game-container h1 {
    margin-bottom: 70px;
}
.game-container img {
    padding: 20px;
    margin: 45px;
}
.game-Simon {
    text-align: center;
    color: rgb(22, 224, 11);
    background-color: whitesmoke;
    padding: 25px 0 100px 0;
    margin: 150px 25% 30px 25%;
    font-size: 30px;
}
.game-Simon button {
    padding: 60px;
    margin: 5px;
}
.Game-match {
    text-align: center;
    color: rgb(22, 224, 11);
    background-color: whitesmoke;
    padding: 25px 0 100px 0;
    margin: 150px 25% 30px 25%;
    font-size: 30px;
}
.Game-match button {
    padding: 60px;
    margin: 5px;
}
.Return {
    color: rgb(22, 224, 11);
    background-color: black;
    text-decoration: none;
    padding: 15px;
    border-radius: 25%;
}
.Return:hover{
    background-color: gray;
}
.game-Memory {
    text-align: center;
    color: rgb(22, 224, 11);
    background-color: whitesmoke;
    padding: 25px 0 100px 0;
    margin: 150px 25% 30px 25%;
    font-size: 30px;
}
img {
    height: 200px;
    width: 200px;
}