@charset "UTF-8";

* {
    margin: 0;
    padding: 0;
    background-color: #efefef;
    background-image: linear-gradient(90deg, #393b3d80 0.5px, transparent 0.5px), linear-gradient(#393b3d80 0.5px, transparent 0.5px);
    background-position: 10px 10px;
    background-size: 21px 21px;
    background-attachment: fixed;
     font-family: Arial, Helvetica, sans-serif;
     text-decoration: none;

}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    height: 100%;
    text-align: center;
}



#wrap {
    display: inline-block;
    text-align: center;
    margin: 0 15px;
    
}


nav ul li {
    display: inline-block;
    text-align: center;
    margin:  10px;
    a:visited {
  color: rgb(0, 0, 0); /* : 訪問済みのリンクを紫色にする */
  
}

}