Add custom style in the style-sheet for a new class of existing block.

Hello @artf _("map") && i.add("map", { label: n.labelMap, category: n.category, attributes: { class: "fa fa-map-o" }, content: { type: "map", classes:['map-width'], // unstylable:['width'], style: { // height: "350px", // width: "auto", } } }); add a new class 'map-width' on map element, now I want to add new css for that class. can you please guide me how to add custom style in the style-sheet for that class. so it'll display in the css section when click on export. and also reflect in pink with x sign like it's added externally. please guide me Thanks in advance. :)