html,
body {
    height: 100%;
    line-height: 1.5;
    padding: 0;
    margin: 0;
}

.pointer {
    cursor: pointer;
}

.f-large {
    font-size: large;
}

.f-x-large {
    font-size: x-large;
}

.f-xx-large {
    font-size: xx-large;
}

.f-larger {
    font-size: larger;
}

.f-small {
    font-size: small;
}

.w120px {
    width: 120px;
}

.w200px {
    width: 200px;
}