body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
    line-height: 2.0;
    color: #333;
}

h1 { font-family: 'M PLUS Rounded 1c', sans-serif; color: #999; margin-top: 0; }
h2 { font-family: 'M PLUS Rounded 1c', sans-serif; color: #777; }
h3 { font-family: 'M PLUS Rounded 1c', sans-serif; color: #555; }

#wrapper {
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
}
@media screen and (max-width:767px) {
    #wrapper {
        padding: 0 6vw;
    }
}

/* MAIN */
main {
    display: block;
    max-width: 768px;
    margin: 0 auto;
    padding: 60px 0 0;
}
@media screen and (max-width:767px) {
    main {
        padding: 30px 0 0;
    }
}

.color-sys-name-block {
    margin-top: 2.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.color-sys-name-block h3 {
    background-color: #efefef;
    border-bottom: 1px solid #ddd;
    margin-top: 0;
    padding: 0.75rem 1rem;
}
.color-sys-name-block h4 {
    padding: 0 1rem;
    font-size: 1.125rem;
}
.color-sys-name-block p {
    padding: 0 1rem;
}
.color-sys-name-block .code {
    background-color: #333;
    margin: 0 1rem;
    padding: 1.8rem 0;
    text-align: center;
    border-radius: 4px;
    font-size: 0.75rem;
    color: #fff;
}

/* FOOTER */
footer {
    padding: 60px 0 40px;
    text-align: center;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #555;
}