CSS3 Gradient Background

Linear background - 180deg

background: -moz-linear-gradient(100% 100% 180deg, #fff, #000);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#fff), to(#000));

Linear background - 90deg

background: -moz-linear-gradient(100% 100% 90deg, #fff, #000);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#fff), to(#000));

Radial background

background: -moz-radial-gradient(center 45deg, circle closest-corner, #fff 0%, #000 100%);
background: -webkit-gradient(radial, center center, 10, center center, 80, from(#fff), to(#000));

Background angle - easy ways

background: -moz-linear-gradient(left, blue, white); /* left, top, left top, ... */
background: -moz-linear-gradient(0deg, black, white); /* 0deg, 90deg, 180deg, ... */
background: -moz-linear-gradient(top, blue, white 80%, orange);

Radial background - easy ways

background: -moz-radial-gradient(red, yellow, blue);
background: -moz-radial-gradient(bottom left, circle, red, yellow, blue);
background: -moz-radial-gradient(bottom left, ellipse, red, yellow, blue);
background: -moz-radial-gradient(circle closest-side, red, yellow, blue);
background: -moz-radial-gradient(circle farthest-side, red, yellow, blue);
background: -moz-radial-gradient(contain, red, yellow, blue);