/* # 底部样式 */
.markdown-section {
    padding: 30px 15px 0px;
    max-width: 90%;
}
main {
    font-size: 19px;
}

/* 底部链接 */
section.content .footer {
    width: 100%;
      /* 内边距 */
    padding: 10px;
    justify-content: space-around;
    text-align: center;
    color: #666;
}

section.content .footer div a {
    margin-right: 15px;
    text-decoration: none;
    color: #666;
}