.logo {
    font-size: 48px;
    font-family: 'Libre Baskerville', serif;
}
body {
    font-size: 12px;
    padding: 0;
    margin: 0;
}

/**
コンテンツのページヘッダ
*/
.page-header {
    height: 50%;
    /* height: 60px; */
    width: 100%;
    background-color:darkolivegreen;
    position:fixed;
    top:0;
    z-index: 9999;
}
/**
コンテンツの最大幅を800pxに制限
*/
.width-bracket {
    position: relative;
    padding: 0;
    margin: 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/**
コンテンツ領域
*/
.content {
    margin-top: 75px;
    margin-left: 15px;
    margin-right: 15px;
}

h1 {
    font-size: 24px;
    font-weight: bolder;
    width: calc(100% - 1em);
    padding-left: 1em;
    border-bottom: solid 1px black;
    border-left: solid 5px black;
    font-family: 'Zen Antique Soft', serif;
}

h2 {
    font-size: 18px;
    font-weight: bolder;
    width: calc(100% - 1em);
    padding-left: 1em;
    border-bottom: solid 1px black;
    border-left: solid 1px black;
    font-family: 'Zen Antique Soft', serif;
}

h3 {
    font-weight: bolder;
    width: calc(100% - 1em);
    padding-left: 1em;
    border-bottom: solid 1px black;
    font-family: 'Zen Antique Soft', serif;
}