Add this code to the Custom CSS field on the Style tab of your Team Showcase widget’s settings:
.global-styles,
.eapp-team-showcase-popup-item-photoContainer,
.eapp-team-showcase-member-card-cards-photoContainer {
display: none;
}
.global-styles,
.eapp-team-showcase-popup-item-infoContainer {
width: 100% !important;
max-width: none !important;
}
.global-styles,
[class^="Popup__PopupContent"] {
width: 680px !important;
}