.Keski {
    text-align: center;
    color: red;
    background-color: rgba(255, 0, 0, 0.5);
}
.Vasen {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: left;
    color:blue;
    background-color: rgba(0, 0, 255, 0.5);
}
.Oikea {
    text-align: right;
    color:green;
    background-color: rgba(0, 128, 0, 0.5);
}
.F300 {
    font-size: 300%;
}
.Lock {
    background-attachment: fixed;
    position: fixed;
    top:0px;
    right: 0px;
}