html ,body {
    margin: 0 30px;
    height: 100%;
    background-color: #feefe2;
}
    /*  */
    .content-frame {
        margin: 20px 0;
        height: auto;
    }
        /*  */
        .content-header {
            width: 350px;
            font-weight: bolder;
            font-size: 22px;
            /*border-left: 4px solid #000000;*/
            border-bottom: 6px solid #000000;
        }
        footer .content-header {
            width: auto;
            font-weight: bolder;
            font-size: 22px;
            text-align: center;
            border: none;
        }
        /*  */
        header .content {
            margin: 10px 55px;
            word-break: break-word;
            font-size: 18px;
        }
        /*  */
        .content {
            margin: 10px 55px;
            word-wrap: break-word;
        }

        /*  */
        .func-content-frame {
            margin: 10px 40px;
            display: flex;
            flex-wrap: wrap;
            align-content: space-between;
        }    
            /* 機能 */
            .func-intr-frame {
                margin: 5px 15px; 
                width: 280px;
                height: 100%;
            }
                /* 詳細機能名 */
                .func-intr-header {
                    font-weight: bold;
                    font-size: 20px;
                    word-wrap: break-word;
                }
                /* 機能説明 */
                .func-intr-frame .content {
                    margin:auto;
                    word-wrap: break-word;
                }

        footer {
            border-top: 5px double #000000;
        }
        .content-frame .chatbot-btn {
            border: none;
        }
        .chatbot-btn{
            box-shadow: 5px 5px 5px gray;
            background-color:#97df97;
            color: #000000;
            padding: 10px;
            border-radius: 30px;
            margin-top: 10px;
            margin-left: 100px;
            text-align: center;
            display: inline-block;
            white-space: nowrap; /* テキストを1行に保つ */
            width: auto; /* 幅を自動調整 */
            height: 60px;

        }

        .chatbot-btn:hover{
            background-color:#66ad66bb;
        }

        .chatbot-btn:active{
            background-color:#3e713ebb;
            color: #fff;
        }