@syncfusion/react-popups/styles/popup/material.css

Syncfusion React popup package is a feature-rich collection of UI components such as Dialog and Tooltip, used to display contextual information or messages in separate pop-ups.

.sf-popup {
  height: auto;
  position: absolute;
  width: auto;
  z-index: 1000;
}
.sf-popup.sf-popup-open {
  display: block;
}
.sf-popup.sf-popup-close {
  display: none;
}