Gapless between image
There would be a gap between left and right photos. How do I produce a gapless? I tried using float and display which seem not workable?

    echo '<li><a href="'.$row['id'].'"><img alt="'.$row['username'].'" src="photo/'.$phm.'"></img></a></li>';
Gapless between image
===

There would be a gap between left and right photos. How do I produce a gapless? I tried using float and display which seem not workable?

    echo '<li><a href="'.$row['id'].'"><img alt="'.$row['username'].'" src="photo/'.$phm.'"></img></a></li>';