body {
        background-color: black;
        color: white;
    }
    #container {
        width: 360px;
        margin-left: auto;
        margin-right: auto;
    }
    #field {
        position: relative;
        height: 540px;
    }
    #up {
        top: 260px;
        left: 110px;
    }
    #left {
        top: 340px;
        left: 0px;
    }
    #right {
        top: 340px;
        left: 220px;
    }
    #down {
        top: 420px;
        left: 110px;
    }
    .button {
        position: absolute;
        background-color: transparent;
        color: white;
        width: 110px;
        height: 70px;
    }
    #start {
        top: 390px;
        left: 70px;
        position: absolute;
        background-color: transparent;
        color: white;
        width: 190px;
        height: 60px;
    }
    #player-info {
        top: 450px;
        left: 20px;
        position: absolute;
        color: white;
    }
    #player-info a{
        color: #0ff;
        font-weight: bold;
    }
    #player-info a:hover{
        color: #f00;
        font-weight: bold;
    }