.leaflet-control-fullscreen a{width:26px;height:26px;display:block}
/* v1.3.10 ensure visibility */
.leaflet-control-fullscreen a{background:#fff !important;border:1px solid rgba(0,0,0,.2);box-shadow:0 1px 3px rgba(0,0,0,.25)}

/* v1.3.12 icon overlay */.leaflet-control-fullscreen a{background:#fff !important;border:1px solid rgba(0,0,0,.2);box-shadow:0 1px 3px rgba(0,0,0,.25)}.leaflet-control-fullscreen a:before{content:"";position:absolute;inset:0;background:center/18px 18px no-repeat url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'><path d='M7 14H5v5h5v-2H7v-3zm12 5h-5v-2h3v-3h2v5zM7 7h3V5H5v5h2V7zm10 0v3h-3v2h5V5h-2z'/></svg>")}