Claro theme overriding the position of the close button on dialogs

Claro theme seems to override the position of the close button on dialogs. When using layout_builder_iframe_modal in layout builder the close button on the dialog is not visible.

If I override these two styles set by the Claro theme, it displays correctly.

.ui-dialog .ui-dialog-titlebar .ui-dialog-titlebar-close {
-  inline-size: var(--jui-dialog-close-button-size);</del>
+  inline-size: 2rem;
}
.ui-dialog .ui-dialog-titlebar .ui-dialog-titlebar-close .ui-icon.ui-icon-closethick {
-  transform: translate(-50%, -50%);
+  transform: none;
}