The text-overflowCSS property determines how overflowed content that is not displayed is signaled to users. It can be clipped, display an ellipsis ('…', U+2026 Horizontal Ellipsis), or display a custom string.
The z-index property specifies the z-order of an element and its descendants. When elements overlap, z-order determines which one covers the other. An element with a larger z-index generally covers an element with a lower one.
The HTMLFormElement.reportValidity() method returns true if the element's child controls satisfy their validation constraints. Whenfalse is returned, cancelable invalid events are fired for each invalid child and validation problems are reported to the user.
The @page CSS at-rule is used to modify some CSS properties when printing a document.You can't change all CSS properties with @page. You can only change the margins, orphans, widows, and page breaks of the document. Attempts to change any other CSS properties will be ignored.