@charset "UTF-8";
*{margin: 0;padding: 0;}
header{justify-content: space-between;
    background-color:silver;
    text-align: center;}
nav ul{display: flex;
    padding:0;
    margin: 0;
    gap: 20px;
    font-size:25px;
    list-style-type: none;
    
    background-color: blue;
    border: solid 1px black;
    font-family: "ＭＳ ゴシック","ヒラギノ角ゴ ProN"}
header h1{padding:0;margin: 0;gap: 30px; color:inherit;font-size: 45px;text-decoration: none; text-align: center; margin-bottom: 20px;}
#mini{font-size: 10px}
#cooperation{font-size: 30px;}
main{padding: 20px; min-height: calc(100%-50px);}
footer{width: 100%;
    background-color:silver;
    text-align: center;
    position:fixed;
    bottom: 0;
    left: 0;
    line-height:70px;}
body{margin: 0;padding: 0;height: 100%;display: grid;}