.root {
    width: 960px;
    margin: 0 auto;
}

.root[size="huge"] {
    width: 1440px;
}

.root[size="large"] {
    width: 1180px;
}

.root[size="small"] {
    width: 768px;
}

.root[size="mini"] {
    width: 640px;
}