diff --git a/onelab.css b/onelab.css
index 862ba07565bb9165291c2c7b9e66be054b829835..2471f468fb13d6d5513d2dd95f83cff6fd9b2b12 100644
--- a/onelab.css
+++ b/onelab.css
@@ -16,7 +16,7 @@ img { border: none; vertical-align: middle; }
 img.screenshot { margin:0.5ex; box-shadow: 0px 1px 4px #bbb;  }
 #toc { margin-top:2em; margin-bottom:2.5em; }
 .fb-like, .twitter-follow-button { vertical-align:bottom; }
-.social{ height:18px; vertical-align:top; }
+.social{ height:15px; vertical-align:top; }
 
 hr { height: 1px; color: #aaa; background-color: #aaa; border: 0;
  margin: .2em 0 .2em 0; }