Bordes para pestañas con CSS

Un efecto muy vistoso que hecho completamente con css, sin usar imágenes ni marcado adicional en el html.

Ever wondered how to create an element that flares into another using only CSS? Here’s a quick tutorial using existing CSS attributes, in combination with CSS generated content, to produce the effect using no images at all, and no additional markup. And it falls back gracefully for older browsers. Flared Borders with CSS – Blog – Ordered List