impof on "Responsive-child not showing on mobile devices"

I'm sorry this is the css that I added:

/* =Theme customization starts here
    -------------------------------------------------------------- */

    #container {
	width: 1010px;
	max-width: 1010px;
	border: 5px solid #f2ff75;
	background-color: #9b7dc3;
	padding: 0 40px ;
    }

    #logo {
	width: 780px;
	height: 127px;
	background-color: #f9ff75;
	margin-top: 14px;
	border: 5px solid #fcff94;
    }

    #logo img {
	display: block;
	height: 120px;
	width: 363px;
	margin: 3px auto;
    }

    #top-widget {
	width: 180px;
	padding: 0;
	margin-top: 13px;
	margin-left: 5px;
	text-align: left;
	background-color: #f1f65d;
    }

    .menu-widget {
	width: 180px;
	position: relative;
    //	left: -8px;
	top: 0px;
	margin: 0px;
    }

    .widget_nav_menu li {
	padding: 8px 0 9px 10px;
	list-style: none;
    }

    .menu-item {
	background-color: #A63F4A;
	border: 1px solid #666666;
	list-style: none;
    }

    .menu-item a {
	color: #F2F872;
	list-style: none;
    }

    #text-2 {
	position: relative;
	top: 15px;
    }

    .main-nav {
	display: none;
    }

    #wrapper {
	width: 740px;
	position: relative;
	top: -240px;
	margin: 60px 0;
	border: 5px solid #fcff94;
	border-radius: 0;
	background-image: url('http://shop.vmecentrum.nl/wp-content/uploads/2014/08/backLayerA_landscape_Wide.jpg');
    }