I checked on my Custom.css and I just found these code..
@media (max-width: 576px){
#t4-header {
padding-top: 30px;
text-align:center;
}
.t4-header .t4-col.megamenu.col-sm.col-md-3 {
display: none;
}
}
@media(max-width: 576px) {
.t4-mainnav.t4-sticky {
top:0!important;
position: fixed!important;
width: 100%;
}
}
I didn't see .col-md
Please more advice..
I don't remove any code because I didn't see .col-md
Thank and please more advice...