.close,
button.close {
  border: 0;
  padding: 0;
  color: currentcolor;
  position: relative;
  &:hover {
    background-color: inherit;
  }
}

.ui-icon-close {
  //margin-inline-start: var(--base-unit--s);
}
    

  

        
          <p><button class="close txp-reduced-ui-button" title="Close">
  <span class="ui-icon ui-icon-close">Close</span><br>
</button></p>