Attribute for <HR ...>
NOSHADE

Usage Recommendation
use it

NOSHADE indicates that the rule should be presented as flat instead of three dimensional. Compare this regular horizontal rule:

---

with a NOSHADE rule:

<HR NOSHADE>

which gives us

---

NOSHADE is often used in conjunction with SIZE

<HR NOSHADE SIZE=10>

which gives us

---

NOSHADE is popular because browsers usually don't render three-dimensional rules very well. Indeed, in many circumstances the rule is presented in the same color as the background, rendering it almost invisible.