<style>
.tueba-contact-mobile{
display:none 
}
.tueba-contact{
left: 30px;
bottom: 30px;
position: fixed;
z-index: 998;
margin-bottom:0
}
.tueba-contact li{
width: 44px;
height: 46px;
overflow: hidden;
 margin-bottom: 0;
list-style: none;
}
.tueba-contact li.facebook{
margin-bottom: 8px;
background: url(http://tueba.edu.vn/public/images/lienhe/fb.png);
background-repeat: no-repeat;
}
.tueba-contact li.zalo{
background: url(http://tueba.edu.vn/public/images/lienhe/zl.png);    background-repeat: no-repeat;
}
.tueba-contact li a{
display: block;
width: 44px;
height: 44px;
}
.tueba-contact{
display:none
} 
@media only screen and (max-width: 499px) {
.tueba-contact{
display:none
}

</style>