15 CSS properties you probably never use

Is it possible? I mean that only there are only 15 properties you have never used before in your CSS? The guys from SEOmoz.com think that yes.

Their list contains:

1. clip
clip: rect(5px, 40px, 45px, 5px)
2. visibility
visibility: (inherit | visible | hidden)
3. text-shadow
text-shadow: color, x-coordinate, y-coordinate, blur radius
text-shadow: #000000 10px -5px 1px
4. content
content: “Your browser supports content”5. quotes
q { quotes: ‘”‘ ‘”‘ }
6. counter-reset and counter-increment

From the mozilla developer center

CSS counters are an implementation of Automatic counters and numbering in CSS 2.1. The value of a counter is manipulated through the use of counter-reset and counter-increment and is displayed
on a page using the counter() or counters() function of the content property.

body {
counter-reset: section; /* Set the section counter to 0 */
}
h1:before {
counter-increment: section; /* Increment the section counter */
content: “Section ” counter(section) “: “; /* Display the counter */
}

7. marks
@page: { marks: <value>; }
8. page-break-before and page-break-after
page-break-before: (always|auto|empty string|left|right);
page-break-after: (always|auto|empty string|left|right);
9. orphans and widows
orphans: <integer>
widows: <integer>
10. font-size-adjust
font-size-adjust: number
11. font-stretch
font-stretch: (normal | wider | narrower | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded | inherit)
12. font-variant
font-variant: (normal | small-caps)
13. caption-side
caption-side: (top | bottom | left | right)
14. table-layout
table-layout: (auto | fixed)
15. empty-cells
empty-cells: (show | hide) For me, most of these were new though I should think as CSS is growing popular, soon these will be yet another CSS snipes everyone uses.