@media(max-width:850px){
	.m{
		display:none;
		width:auto
	}
	.c{
		width:100%;
		margin:0;
		box-sizing:border-box
	}
	header .n{
		padding:0
	}
	header .i{
		margin-left:10px
	}
	.btn_m{
		position:absolute;
		top:0;right:2px;bottom:0;
		width:50px;
		background-size:65%;
		background-position:center center;
		background-repeat:no-repeat
	}
	.btn_m:active{
		transform:scale(.98);
		background-color:rgba(0,0,0,.1)
	}
	.m{
		position:fixed;
		padding:6px;
		top:0;right:0;bottom:0;
		width:100%;
		max-width:250px;
		background-color:#e8e8e8;
		z-index:7;
		overflow-y:auto;
		box-shadow:-1px 0 10px rgba(0,0,0,.3)
	}
	.h1big{
		font-size:25px
	}
}