@media only screen and (min-width: 320px) and (max-width: 767px) {
    img#navi_button{
        display: block;
        position: absolute;
        box-sizing: border-box;
        
        width: 35px;
        height: 26px;
        
        top: 18px;
        right: 15px;
    }
	nav#navi{
		display: none;
		position: absolute;
		
		top: 103px;
	
		width: 100%;
		min-height:50px;
		
		z-index: 4;
	}
	nav ul, nav ul li {
		list-style-type: none;
		margin: 0px;
		padding: 0px;
	}
	nav a {
		display: block;
		box-sizing:border-box;
	
		width: 100%;
		height: 45px;

        border-bottom: 1px solid #000000;
	
		color: #000000;
		text-decoration: none;
		line-height: 45px;
		letter-spacing:0.5px;
		text-align: center;
		
		background-color: #99bff0;
	}
    nav ul li:first-child a{
        border-top: 1px solid #000000;
    }
    nav ul li.active a {
        color: #166cdb;
        text-decoration:none;
    }
}