Create custom.css file, try this documentation http://t3-framework.org/documentation/bs3-customization#custom-css
Add this code to custom.css
@media (min-width: 750px) and (max-width: 820px) {
.navbar-collapse {
width: auto;
border-top: 0;
box-shadow: none;
}
.navbar-collapse.collapse {
display: block !important;
height: auto !important;
padding-bottom: 0;
overflow: visible !important;
}
.navbar-collapse.in {
overflow-y: visible;
}
.navbar-fixed-top .navbar-collapse,
.navbar-static-top .navbar-collapse,
.navbar-fixed-bottom .navbar-collapse {
padding-left: 0;
padding-right: 0;
}
.nav li{
float:left;
}
.navbar-header{
float:left;
}
.t3-navbar{
margin-left:200px !important;
}
.navbar-nav{
margin:0px -20px !important;
}
}
