html,body{
    height: 100%;
}

body {
    text-align: center;
    font-family: 'Kiwi Maru' , serif;
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
}

.container {
    margin:0px auto;
    flex:1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content:flex-start;
}

.tool {
    width: 340px;
    margin: 0px 30px;
    text-align: left;
    justify-content: left;
}

h1 {
    margin: 30px 0;
    font-size: 40px;
}
h2 {
    margin-top: 6px;
}

a {
    text-decoration: none;
    border-radius: 10px;
    background-color:palegreen;
    font-size: 1.5rem;
    color:black;
    display: inline-block;
    text-align: center;
    margin-bottom: 5px;
    padding:5px 10px;
    width:auto;
    max-width: nones;
}

.course {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    gap:5px;
    margin-bottom: 5px;
}

.course a {
    margin-bottom: 0px;
}

.kokura a {
    display:block;
    width:15rem;
}

.hidden {
    display: none;
}
/*フッター*/
footer {
    width: 100%;
    text-align: center;
    padding: 1rem;
}
footer small {
    color: #c7c3ba;
    font-size: .875rem;
}