Chrome 1px line bug

[-v-cmmm]

I am making one fan-site and have very stupid bug on news bar. When I zoom the page, 1px line appears.http://i.imgur.com/yN4k1io.png?1?4076This is the code:\[code\]<div class="velikibar"><div id="velikibar_h"> <div id="naslovbar"><?=$naslov?></div></div><div id="velikibar_b"> <div class="paddingvelikibar"> <?=$sadrzaj?> </div></div><div id="velikibar_f"> <div id="fblikedugme"><?=$vreme?><br /><div class="fb-like" data-href="http://********.**/article.php?id=<?=$id?>" data-send="false" data-layout="button_count" data-width="100" data-show-faces="false"></div></div> <div id="komentarbarbox"><a href="http://stackoverflow.com/questions/14415434/article.php?id=<?=$id?>" target="_self">Komentari (<?=$brkomentara?>)</a></div></div>\[/code\]And this is the CSS:http://tny.cz/d9fb11dbPlease help me how to fix this. Thanks in advance