@media screen and (max-width: 767px){
body{
background-image:none;
}
.container {
width : 100%;
}
.navbar.navbar-default{
    background-repeat-y: no-repeat;
}
#head_img{
	display:none;
}
aside {
display : none;
}
.navbar-default .navbar-nav .open .dropdown-menu>li>a {
    color: #fff;
}
.embed-responsive.embed-responsive-16by9{
display:none;
}
.desktop-only{
display:none;
}
.dropdown.open,{
display:none;
}
li.dropdown{
display:none;
}
}




@media screen and (min-width:768px) and (max-width: 960px){
body{
background-image:none;
}
.container{
width:100%;
}
aside{
width:30%;
float:left;
}
main{
width:65%;
float:right;
}

}


@media screen and (min-width: 1800px){
body{
background-image:none;
}
.container{
width:100%;
}
.navbar-default .navbar-brand{
	display:none;
}
}