GIF transparency bug test for Opera

Opera browser bug with GIF images that have at least one black pixel and transparency, plased as background. Bug appears on any zoom except 100%.

Transparent GIF image

Transparent GIF image

Transparent GIF image

Transparent GIF as background on a DIV

Transparent GIF as background on a DIV

Transparent GIF as background on a DIV

"O" with black shadow

Transparent GIF as background on a DIV

"O" with gray shadow