[add] message hover a little bit upper

srv/public/style.css

@@ -57,7 +57,7 @@ body { display: flex; margin: 0; padding: 0; font-family: Lato, sans-serif; }
 .slackmsg-same-author:not(.slackmsg-me_message) .slackmsg-content { margin-left: 46px; }
 .slackmsg-same-ts .slackmsg-ts { display: none; }
 
-.slackmsg-hover { display: none; position: absolute; top: 0; right: 0; margin: 0; list-style: none; padding: 0; }
+.slackmsg-hover { display: none; position: absolute; top: -8px; right: 0; margin: 0; list-style: none; padding: 0; }
 .slackmsg-hover > li { display: inline-block; width: 1.5em; height: 1.5em; background: white; border: 1px solid lightgrey; vertical-align: bottom; cursor: pointer; background-size: contain; background-repeat: no-repeat; background-position: center center; border-right: none; }
 .slackmsg-hover > li > span { margin-top: 3.5px; margin-left: 3px; }
 .slackmsg-hover > li:first-child { border-bottom-left-radius: 5px; }