@media screen and (min-width: 761px){
    #sub_nav{
        display: block;
    }
}
@media screen and (max-width: 760px){	
	p {
		font-size: 19px;
	}
	#sub_nav {
		z-index: 2;
		height: auto;
		position: fixed;
		padding-bottom: 15px;
		margin-top: 65px;
		display: none;
		font-size: 27px;
	}
    #sub_nav > ul > li{
        width: auto;
        padding: 12px;
        clear: both;
		margin: 0 40px 0 0;
		text-align: left;
    }
    #sub_nav > ul > li:hover{
		-webkit-box-shadow: none; /* Chrome, Safari */
		   -moz-box-shadow: none; /* Firefox */
		        box-shadow: none; /* Standard */
		padding: 12px;
	}
	#sub_nav > ul > li > a{
		color: #fff;
	}
	#content{
		min-height: 100%;
	}
	#content_wrapper {
		margin: 100px auto 0 auto;
	}
	#mobile{
		width: auto;
		height: 60px;
    	margin: 0;
    	padding: 10px 20px 0 20px;
		display: block;
	}
	#mobile:hover{
		-webkit-box-shadow: none; /* Chrome, Safari */
		   -moz-box-shadow: none; /* Firefox */
		        box-shadow: none; /* Standard */
		padding-bottom: 0;
	}
	#mobile_button{
		margin: 0;
		padding: 0;
		background-image: url(../media/icons/mobile_240x240.png);
		background-position: 50% 50%;
		background-size: cover;
		width: 50px;
		height: 50px;
		cursor: pointer;
	}
	.active_sn{
		-webkit-box-shadow: none; /* Chrome, Safari */
		   -moz-box-shadow: none; /* Firefox */
		        box-shadow: none; /* Standard */
		color: #bbb;
	}
}
@media screen and (max-width: 716px){ /* IE: 716px; Chrom, Firefox: 714px */
    #footer_space{
        height: 350px;
    }
}
@media screen and (max-width: 600px){
    #logo {
        display: none;
    }
    #home {
		display: block;    
    }
}
@media screen and (max-width: 550px) {
	h1 { 
	 	font-size: 40px;
   		margin: 10px 0
	}
	h2 {
		font-size: 38px;
	}
	h4 {
		font-size: 26px;
	}
	nav, nav ul {
		height: 50px;
	}
	nav > ul > li {
   		width: auto;
   		font-size: 18px;
 	}
 	nav > ul > li > a{
   		line-height: 50px;
 	}
 	#sub_nav {
 		margin-top: 50px;
 	}
    #mobile {
        width: auto;
        height: 40px;
        padding: 10px 10px 0 10px;
    }
	#mobile_button {
		width: 30px;
		height: 30px;
	}	
}
@media screen and (max-width: 449px){ /* IE: 449px; Chrom, Firefox: 447px */
	#footer_space{
    	height: 525px;
    }
    #content_wrapper {
		width: 95%;
	}
}