@media screen and (min-width: 769px) {
/* 共通用のスタイル記述 */

/* Overlay style */
.overlay {
	position: fixed;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: rgba(50,50,50,0.9);
    z-index: 9999;
}

button {
    position: fixed;
    bottom: 20px;
    right:20px;
	font-size: 18px;
    font-weight: bold;
    letter-spacing: 0.15em;
    border: none;
    padding: 8px 11px 8px 13px;
    outline: none;
    background-color: #222;
    color:#fff;
    z-index: 9999;
}
section button{
    -webkit-transition: all 0.2s ease;
    -moz-transition: all 0.2s ease;
    -o-transition: all 0.2s ease;
    transition: all  0.2s ease;
}
section button:hover{
    opacity: 0.5;
}
/* Overlay closing cross */
.overlay .overlay-close {
	width: 54px;
	height: 54px;
	position: absolute;
    bottom:15px;
    right:42px;
    margin-top: -12px;
	overflow: hidden;
	border: none;
	background: url(../img/cross.png) no-repeat center center;
    background-size: 100%;
	text-indent: 200%;
	color: transparent;
	outline: none;
	z-index: 9999;
}

/* Menu style */
.overlay nav {
	text-align: center;
	position: relative;
	top: 50%;
	height: 60%;
	-webkit-transform: translateY(-50%);
	transform: translateY(-50%);
}

.overlay ul {
	list-style: none;
	padding: 0;
	margin: 0 auto;
	display: inline-block;
	height: 100%;
	position: relative;
}

.overlay ul li {
	display: block;
    vertical-align: middle;
	height: 25%;
	height: calc(100% / 4);
	min-height: 54px;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
}

.overlay ul li a {
	font-size: 36px;
    letter-spacing: 0.1em;
	display: block;
	color: #fff;
	-webkit-transition: color 0.2s;
	transition: color 0.2s;
}

.overlay ul li a:hover,
.overlay ul li a:focus {
	color: #f0f0f0;
}

/* Effects */
.overlay-scale {
	visibility: hidden;
	opacity: 0;
	-webkit-transform: scale(0.9);
	transform: scale(0.9);
	-webkit-transition: -webkit-transform 0.2s, opacity 0.2s, visibility 0s 0.2s;
	transition: transform 0.2s, opacity 0.2s, visibility 0s 0.2s;
}

.overlay-scale.open {
	visibility: visible;
	opacity: 1;
	-webkit-transform: scale(1);
	transform: scale(1);	
	-webkit-transition: -webkit-transform 0.4s, opacity 0.4s;
	transition: transform 0.4s, opacity 0.4s;
}
}



/* ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
ここから下、スマホ用
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★ */



@media screen and (max-width: 768px) {
/* スマホ用のスタイル記述 */
/* Overlay style */
.overlay {
	position: fixed;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: rgba(50,50,50,0.9);
    z-index: 9999;
}

button {
    position: fixed;
    bottom: 15px;
    right:5%;
	font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.15em;
    border: none;
    padding: 8px 6px 8px 8px;
    outline: none;
    background-color: #222;
    color:#fff;
    z-index: 9999;
}
/* Overlay closing cross */
.overlay .overlay-close {
	width: 50px;
	height: 50px;
	position: absolute;
	bottom: 10px;
	right: 24px;
	overflow: hidden;
	border: none;
	background: url(../img/cross.png) no-repeat center center;
    background-size: 100%;
	text-indent: 200%;
	color: transparent;
	outline: none;
	z-index: 9999;
}

/* Menu style */
.overlay nav {
	text-align: center;
	position: relative;
	top: 50%;
	height: 60%;
	-webkit-transform: translateY(-50%);
	transform: translateY(-50%);
}

.overlay ul {
	list-style: none;
	padding: 0;
	margin: 0 auto;
	display: inline-block;
	height: 100%;
	position: relative;
}

.overlay ul li {
	display: block;
    vertical-align: middle;
	height: 25%;
	height: calc(100% / 4);
	min-height: 54px;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
}

.overlay ul li a {
	font-size: 24px;
    letter-spacing: 0.1em;
	display: block;
	color: #fff;
	-webkit-transition: color 0.2s;
	transition: color 0.2s;
}

.overlay ul li a:hover,
.overlay ul li a:focus {
	color: #f0f0f0;
}

/* Effects */
.overlay-scale {
	visibility: hidden;
	opacity: 0;
	-webkit-transform: scale(0.9);
	transform: scale(0.9);
	-webkit-transition: -webkit-transform 0.2s, opacity 0.2s, visibility 0s 0.2s;
	transition: transform 0.2s, opacity 0.2s, visibility 0s 0.2s;
}

.overlay-scale.open {
	visibility: visible;
	opacity: 1;
	-webkit-transform: scale(1);
	transform: scale(1);	
	-webkit-transition: -webkit-transform 0.4s, opacity 0.4s;
	transition: transform 0.4s, opacity 0.4s;
}

}