* The **`border`** CSS property is shorthand for the CSS properties **`border-width`**, **`border-style`**, and **`border-color`**. It sets an element's border.
* The **`box-shadow`** CSS property adds shadow effects around an element's frame. You can set multiple effects separated by commas. A box shadow is described by X and Y offsets relative to the
* element for blur and spread radii, and by its color.
* The **`font-weight`** CSS property specifies the weight (or boldness) of the font. The font weights available to you will depend on the `font-family` you are using. Some fonts are only
* The **`z-index`** CSS property sets the z-order of a positioned element and its descendants or flex items. Overlapping elements with a higher z-index cover those with a lower one.