background-image: -sand-gradient(linear, center top, center bottom, from(rgba(0, 0, 255, 1)), to(rgba(0, 0, 255, 0)));

This tests the gradient inside objects with rounded corners (the rounded corners are not visible in Explorer)

background: -sand-gradient(linear, left top, right top, from(rgba(255, 128, 128, 1)), to(rgba(255, 128, 128, 0)));

background-image: -sand-gradient(linear, left top, right top, from(rgba(0, 255,0, 1)), to(rgba(0, 255,0, 0)));

background-image: -sand-gradient(linear, left top, right top, from(rgba(0, 0, 255, 0.5)), to(rgba(255, 0, 0, 1)));