div.is-style-quarter figure, figure.is-style-quarter, #editor figure.is-style-quarter {
    width: 25%;
    max-width: 277px;
}
figure.is-style-quarter.alignright {
    margin-right: auto;
}
figure.is-style-quarter.alignleft {
    margin-left: auto;
}
figure.is-style-quarter:not(.alignleft):not(.alignright) {
    margin-right: auto;
    margin-left: auto;
}