#twitter_tab
{
    display: inline-block;
    top: 110px;
    width: 37px;
    height: 37px;
    background: url("basi/tab_twitter.png") no-repeat 0 0;
    position: absolute;
    left: 0px;
}
#twitter_tab:hover
{
    background-position: -37px 0;
}
#twitter_tab span
{
    display: none;
}


#linkedin_tab
{
    display: inline-block;
    top: 163px;
    width: 37px;
    height: 37px;
    background: url("basi/tab_linkedin.png") no-repeat 0 0;
    position: absolute;
    left: 0px;
}
#linkedin_tab:hover
{
    background-position: -37px 0;
}
#linkedin_tab span
{
    display: none;
}


#facebook_tab
{
    display: inline-block;
    top: 216px;
    width: 37px;
    height: 37px;
    background: url("basi/tab_facebook.png") no-repeat 0 0;
    position: absolute;
    left: 0px;
}
#facebook_tab:hover
{
    background-position: -37px 0;
}
#facebook_tab span
{
    display: none;
}


#vkontakte_tab
{
    display: inline-block;
    top: 269px;
    width: 37px;
    height: 37px;
    background: url("basi/tab_vkontakte.png") no-repeat 0 0;
    position: absolute;
    left: 0px;
}
#vkontakte_tab:hover
{
    background-position: -37px 0;
}
#vkontakte_tab span
{
    display: none;
}