.img-small {
    border-radius: 4px;
    width: 16.1em;
}

.img-center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.img-16 {
    width: 16px;
    margin-left: 5px;
    margin-right: 5px;
}

.img-24 {
    width: 24px;
    margin-left: 5px;
    margin-right: 5px;
}

.img-32 {
    width: 32px;
    margin-left: 5px;
    margin-right: 5px;
}

.img-64 {
    width: 64px;
    margin-left: 5px;
    margin-right: 5px;
}

.img-uni {
    width: 20em;
}