Edit in JSFiddle

#mintshare_mini, #mintshare_mini ul {padding:0; margin:0; list-style:none; width:100px; font-family:arial, sans-serif; background:url("http://2.bp.blogspot.com/_b8IA1ajBJG8/TSfjG3P4w7I/AAAAAAAAB3k/yjkmCOax0yc/s1600/bkg-btn-grey.gif") repeat-x scroll 0 0 #EDEDED;
}

#mintshare_mini {width:100px; height:30px; border:1px solid #888; padding: 0 15px;
-o-border-radius: 15px;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
border-radius: 15px;
}

#mintshare_mini a.sharetext {
display:block; width:100px; height:30px; text-align:center; line-height:30px; color:#000; text-decoration:none; font-size:13px; font-weight:bold;
background: url("http://3.bp.blogspot.com/_b8IA1ajBJG8/TSfjIshr9pI/AAAAAAAAB3w/UnosHLVx3co/s1600/plus.png") no-repeat scroll 0 center transparent;
padding-left:5px;
cursor:pointer;
}

#mintshare_mini a.sharetext img {
    border: 0 none;
    display: block;
    margin-left: 10px;
}


#mintshare_mini .flyout {
    background: none repeat scroll 0 0 #AAAAAA;
    height: 113px;
    left: 40px;
    position: relative;
    top: -4px;
    width: 0;
transition: width 1s ease-in-out;
-o-transition: width 1s ease-in-out;
-moz-transition: width 1s ease-in-out;
-webkit-transition: width 1s ease-in-out;
}

#mintshare_mini .flyout ul {
background:url("http://2.bp.blogspot.com/_b8IA1ajBJG8/TSfjG3P4w7I/AAAAAAAAB3k/yjkmCOax0yc/s1600/bkg-btn-grey.gif") repeat-x scroll 0 0 #EDEDED;
list-style:none;
position:absolute; 
left:-1000px; 
top:-27px; 
width:365px; 
height:30px; 
border:1px solid #888; 
border-left:0; 
padding-right:10px;
z-index: 500;
overflow: hidden;
padding-left: 15px;
transition: 1s ease-in-out;
-o-transition: 1s ease-in-out;
-moz-transition: 1s ease-in-out;
-webkit-transition: all 1s ease-in-out;
-o-border-radius: 0 15px 15px 0;
-icab-border-radius: 0 15px 15px 0;
-khtml-border-radius: 0 15px 15px 0;
-moz-border-radius: 0 15px 15px 0;
-webkit-border-radius: 0 15px 15px 0;
border-radius: 0 15px 15px 0;
}

#mintshare_mini:hover .flyout ul{
left:50px;
}

#mintshare_mini .flyout ul li {
float: left;
}

#mintshare_mini .flyout ul li a{

}

#mintshare_mini .flyout ul a img {

}

#mintshare_mini .flyout ul li.drop-li {position:relative; width:35px; height:30px; float:left; z-index:100; margin-top: -2px;}
#mintshare_mini .flyout ul li.drop-li a.drop-a {display:block; width:100px; float:left; text-decoration:none; line-height:16px;}


#mintshare_mini .flyout ul li.drop-li a.drop-a img {display:block; border:0; position:absolute; left:5px; top:5px; z-index:-1; opacity:1; filter: alpha(opacity=100);
transition: 0.4s ease-in-out;
-o-transition: 0.4s ease-in-out;
-moz-transition: 0.4s ease-in-out;
-webkit-transition: all 0.4s ease-in-out;
}

#mintshare_mini .flyout ul li.drop-li a b {background:lightBlue; padding:2px 0; font-family:arial, sans-serif; display:block; width:100px; margin-top:58px; text-align:center; cursor:pointer; color:#000; font-size:14px; opacity:0; filter: alpha(opacity=0);
transition: 0.4s ease-in-out;
-o-transition: 0.4s ease-in-out;
-moz-transition: 0.4s ease-in-out;
-webkit-transition: all 0.4s ease-in-out;
-moz-border-radius:10px;
-webkit-border-radius:10px;
border-radius:10px;
-o-border-radius:10px;
}

#mintshare_mini .flyout ul li.drop-li:hover > a img {opacity:0.5; filter: alpha(opacity=50);}
#mintshare_mini .flyout ul li.drop-li:hover > a b {opacity:1; filter: alpha(opacity=100);}


/* For IE6 */

#mintshare_mini .flyout ul li.drop-li a:hover img {filter: alpha(opacity=50);}
#mintshare_mini .flyout ul li.drop-li a:hover b {filter: alpha(opacity=100);}

/* Get MintShare */

#mintshare_mini .get_mintshare {
    font-size: 10px;
    margin-left: 5px;
    position: relative;
    top: 2px;
}