* {
    box-sizing: border-box;
}

html {
    font-size: 62.5%;
    width: 100%;
    min-width: 1200px;
}

body {
    font-size: 1.5em;
    font-weight: 400;
    line-height: 1.0;
    color: #333;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
    opacity: .8;
}

img {
    max-width: 100%;
    vertical-align: bottom;
}

header {
    width: 100%;
    position: absolute;
    position: fixed;
    z-index: 11;
    top: 0;
    background: #ff5252;
    padding: 2rem 0;
    text-align: center;
}

header .logo {
    display: inline-block;
    margin: auto;
    text-align: center;
    font-size: 4rem;
    font-family: 'Monoton', cursive;
}

header .logo img {
    width: 4rem;
    margin-right: 2rem;
}

header .logo span {
    color: white;
    text-shadow: 1px 1px black;
}



main {
    display: flex;
    width: 1200px;
    margin: 12rem auto 0;
}

#sidebar {
    background: #69f0ad;
    width: 264px;
    padding: 24rem 2rem 2rem;
    position: relative;
}

#sidebar .sidebar-head {
    position: absolute;
    top: 0;
    left: 0;
}

#sidebar .account {
    position: absolute;
    right: 0;
    bottom: -4rem;
    left: 0;
    margin: auto;
    width: 8rem;
    height: 8rem;
}

#sidebar .account img {
    border-radius: 50%;
    border: 4px solid white;
}

#sidebar .account figcaption {
    margin-top: 1em;
    font-weight: bold;
    text-align: center;
}

#sidebar h2 {
    font-size: 20px;
    margin-top: 2em;
}

#sidebar ul {
    padding-left: 2em;
}

#sidebar ul li {
    list-style-type: disc;
}

#sidebar ul li + li {
    margin-top: 1em;
}

#sidebar ul li a {
    color: #609;
    text-decoration: underline;
}

#sidebar .sns {
    display: flex;
    justify-content: space-between;
    width: 70%;
    margin: 4rem auto 0;
}

#sidebar .sns img {
    width: 4rem;
    border-radius: 50%;
}

#content {
    background: #ffab40;
    width: 75%;
    margin-left: auto;
    padding: 4rem;
}
#contetn section + section {
    margin-top: 4rem;
}

h2 {
    font-size: 3rem;
    text-align: center;
    padding: 0.5em 0;
    border-top: 2px solid;
    border-bottom: 2px solid;
    margin-bottom: 1em;
}

h3 {
    font-size: 2rem;
    padding: 0.25 0 0.25 1em;
    border-left: 8px solid;
    margin-bottom: 1em;
}

#content .box-area {
    display: flex;
    flex-wrap: wrap;
    margin-top: 4rem;
}

#contetn .box {
    display: block;
    border: 2px solid;
}

#content .box:nth-of-type(n + 2) {
    margin-left: 5%;
}

#content .box:nth-of-type(3n + 4) {
    margin-left: 0;
}

#content .box:nth-of-type(n + 4) {
    margin-top: 5%;
}

footer {
    margin-top: 4rem;
    width: 100%;
    background: #40c4ff;
}

.copyright {
    text-align: center;
    background: 3;
    margin: 0;
    font-size: 1.2rem;
}