Open Plugin Editor – navigate to Post Tabs. Click on posttabs/style.php.
Change the following to suit your needs:
ul.postTabs li
{
display: inline !important;
font-size: 11px;
line-height:normal;
background: none;
padding: 0px;
margin: 0px;
}
ul.postTabs li a
{
text-decoration: none;
background: <?php echo $postTabs_options["inactive_bg"]; ?>;
border: 1px solid <?php echo $postTabs_options["line"]; ?> !important;
padding: 0.2em 0.4em !important;
color: <?php echo $postTabs_options["inactive_font"]; ?> !important;
outline:none;
cursor: pointer;
}
ul.postTabs li.postTabs_curr a{
border-bottom: 1px solid <?php echo $postTabs_options["active_bg"]; ?> !important;
background: <?php echo $postTabs_options["active_bg"]; ?>;
color: <?php echo $postTabs_options["active_font"]; ?> !important;
text-decoration: none;
}
ul.postTabs li a:hover
{
color: <?php echo $postTabs_options["over_font"]; ?> !important;
background: <?php echo $postTabs_options["over_bg"]; ?>;
text-decoration: none;
}
Not affiliated with this plugin, just trying to help.