.menu-btn {
    position: fixed;
    top: 10px;
    right: 10px;
    display: flex;
    height: 50px;
    width: 50px;
	border-radius: 3px;
    justify-content: center;
    align-items: center;
    z-index: 90;
	background-color: #0b2d48;
}

#menu-btn-check {
    display: none;
}

.menu-btn span,
.menu-btn span:before,
.menu-btn span:after {
    content: '';
    display: block;
    height: 3px;
    width: 25px;
    border-radius: 3px;
    background-color: #ffffff;
    position: absolute;
}
.menu-btn span:before {
    bottom: 8px;
}
.menu-btn span:after {
    top: 8px;
}

.menu-content {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 80;
    background-color: #3584bb;
}
.menu-content ul {
    padding: 70px 10px 0;
}
.menu-content ul li {
    border-bottom: solid 1px #ffffff;
    list-style: none;
	text-align: center;
	line-height: 50px;
	
}
.menu-content ul li a {
    display: block;
    width: 100%;
    font-size: 15px;
    box-sizing: border-box;
    color:#ffffff;
    text-decoration: none;
    padding: 9px 15px 10px 0;
    position: relative;
}
/*
.menu-content ul li a::before {
    content: "";
    width: 7px;
    height: 7px;
    border-top: solid 2px #ffffff;
    border-right: solid 2px #ffffff;
    transform: rotate(45deg);
    position: absolute;
    right: 11px;
    top: 16px;
}
*/

.menu-content {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 100%;/*leftの値を変更してメニューを画面外へ*/
    z-index: 80;
background-color: rgba(11, 43, 72, 0.80);
    transition: all 0.5s;/*アニメーション設定*/
}

#menu-btn-check:checked ~ .menu-content {
    left: 0;/*メニューを画面内へ*/
}