@media only screen and (min-width: 768px) {
 header {
    width: 100%;
    max-width: calc(100% - 165px);
    margin-left: 165px;
}   
}
@media only screen and (max-width: 767px) {
.main-wrapper{
    max-width: 100%;
    margin-left: 0px;
}
.side-nav{
   display: none; 
}
.xs-show{
    display: block;
    position: relative;
    z-index: 99999;
}
.xs-nav .dropdown, .xs-nav .dropup {
    margin-bottom: 0;
    bottom: -5px;
    height: 0;
    overflow: visible;
}
#top-title{
    display: block;
}
}
@media only screen and (max-width: 375px) {
.xs-nav .btn {
    width: 144px;
    font-size: 13px;
    padding: 10px 6px;
}
.xs-nav .btn:before {
    top: 23px;
    right: 3px;
    font-size: 18px;
}
.xs-nav .btn:after {
    top: 14px;
    right: 3px;
    font-size: 18px;
}
}