@media screen and (max-width: 450px) {
    /*============================================
    Header
    ============================================*/
    #header {
        position: fixed;
        width: 100% !important;
        height: 50px !important;
        background: #fff;
        border-bottom: 3px solid #777;
        z-index: 1000;
    }
    #header h1 {
        display: block;
        width: 100%;
        font-size: 20px;
        text-align: left;
        padding-left: 5px;
        box-sizing: border-box;
    }
    #header p {
        display: none;
    }
    #header .sp_menu {
        display: block !important;
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
    }
    #header .sp_menu .menu_button {
        position: fixed;
        display: block;
        top: 5px;
        right: 10px;
        padding: 5px 12px;
        font-size: 20px;
        color: #555;
        border: 1px solid #555;
        border-radius: 5px;
        cursor: pointer;
    }
    #header .sp_menu #side {
        display: none;
        position: fixed !important;
        top: 50px !important;
        width: 100%;
        z-index: 1100;
        padding: 0;
        background: #fff;
        height: calc(100vh - 50px);
        text-align: center;
    }
    #header .sp_menu #side h2.widgettitle {
        display: none;
    }
    ul.menu {
        display: inline-flex;
        flex-wrap: wrap;
        align-self: center
    }
    ul.menu li {
        width: 100%;
        display: block;
        border-bottom: 1px solid #333;
    }
    ul.menu li:last-child {
        display: none;
    }
    ul.menu li a {
        padding: 10px !important;
    }
    #side .widget {
        margin: 0 !important;
    }
    li#custom_html-3,
    li#custom_html-3 a {
        width: 100%;
        display: block;
        text-align: center;
    }
    /*============================================
    Contents
    ============================================*/
    #pagebody {
        margin-top: 50px !important;
    }
    #main {
        padding: 10px;
        box-sizing: border-box;
    }
    #yosakoi {
        display: block;
        padding: 0;
        margin: 0 auto;
        overflow: hidden;
    }
    #yosakoi dl {
        float: none !important;
        display: block;
        margin: 0 auto;
    }
    #yosakoi .link {
        display: none;
    }
    #yosakoi img {
        display: none;
    }
    div {
        width: auto !important;
        height: auto !important;
        min-width: auto !important;
        min-height: auto !important;
        max-width: initial !important;
        max-height: initial !important;
    }
    table {
        display: block;
        overflow: hidden;
        text-align: left !important;
        width: auto !important;
        height: auto !important;
    }
    table tr {
        display: block !important;
    }
    table td {
        display: block;
        float: left;
        width: auto !important;
        height: auto !important;
        min-width: auto !important;
        min-height: auto !important;
    }
    table td img {
        max-width: 150px;
        height: auto !important;
    }
    /*============================================
    MailForm
    ============================================*/
    form table {
        display: block;
    }
    form table tbody {
        width: 100%;
        display: block;
    }
    form table tr,
    form table th,
    form table td {
        display: block;
        float: none;
        width: 100% !important;
        box-sizing: border-box;
    }
    form table th {
        padding: 10px !important;
    }
    form table td {
        padding-left: 30px !important;
        padding-right: 10px !important;
    }
    form table td input:not(input[type="number"]),
    form table td select,
    form table td textarea {
        font-size: 18px;
        box-sizing: border-box;
        width: 100% !important;
    }
    /*============================================
    Footer
    ============================================*/
    #page-top a {
        padding: 20px 0 !important;
    }
    dl.address {
        width: 100% !important;
    }
    dl.address dt,
    dl.address dd {
        width: 100% !important;
        float: none !important;
        display: block;
        margin: 0 !important;
        box-sizing: border-box;
    }
    dl.address dt {
        border-bottom: none !important;
        padding-left: 10px !important;
        font-weight: bold;
    }
    dl.address dd {
        padding-left: 20px !important;
    }
    p.copy {
        text-align: center;
    }
}