.wp-block-nelios-flexbox {
    box-sizing: border-box;
    min-width: 0;
}

.wp-block-nelios-flexbox > * {
    min-width: 0;
}

.editor-styles-wrapper .wp-block-nelios-flexbox {
    border: 1px dashed rgba(103, 116, 255, 0.25);
    padding: 8px;
}