.BlockEditorFullScreenWidthEnabled #blockEditor > .beContainer > .beItemContainer {
    padding-left: 40px;
    padding-right: 40px;
}

@media screen and (max-width: 1023.9px) {
    .BlockEditorFullScreenWidthEnabled #blockEditor > .beContainer > .beItemContainer {
        padding-left: 25px;
        padding-right: 25px;
    }
}