.game-container{
    width: 1280px;
    height: 720px;
    margin: auto;
    border: 2px solid black;
    overflow: hidden;
}

#unity-canvas{
    width: 100%;
    height: 100%;
    display: block;
}

#fullscreen-button {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 8px 14px;
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    border: 1px solid #555;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s;
}

#fullscreen-button:hover {
    background-color: rgba(0, 0, 0, 0.95);
}