<apex:page>
<style>
.vfHelpText a {position:relative;}
.vfHelpText a span {display: none;}
.vfHelpText a:hover span {display: block;
position:absolute;
top:1.25em;
padding:2px 5px;
left:-15em; width:15em;
z-index:100;
border:1px solid orange;
background-color:#FEFDB9;
color:black;
}
.helpOrb {
background-image: url(/img/help/helpOrbs.gif);
background-position: 0 0;
width: 20px;
height: 15px;
}
.helpButtonon .helpOrb {
background-position: top right;
}
.helpButton .helpOrb {
background-position: top left;
}
</style>
<span class="vfHelpText">
<apex:outputLink value="javascript:return false;">
<img src="/s.gif" alt="" class="helpOrb" />
<!--s.gif image is standard image no need to upload anywhere-->
<span>{!$ObjectType.Contact.fields.AccountId.inlineHelpText}</span>
</apex:outputLink>
</span>
</apex:page>