.form_submit_btn_1 {
    height: 35px;
    line-height: 35px;
    text-align: center;
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 1px;
    color: #fff;
    background: #178a7d;
    padding: 0;
    border: none;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    display: inline-block;
    width: 190px;
    font-family: "メイリオ", Meiryo, "游ゴシック", YuGothic, 'Noto Sans Japanese', "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", Verdana, sans-serif;
}

.form_submit_btn_2 {
    display: block;
    width: 100%;
    height: 35px;
    line-height: 35px;
    text-align: center;
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 1px;
    color: #fff;
    background: #178a7d;
    padding: 0;
    border: none;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    font-family: "メイリオ", Meiryo, "游ゴシック", YuGothic, 'Noto Sans Japanese', "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", Verdana, sans-serif;
}

@media only screen and (max-width: 640px) {
    .form_submit_btn_1 {
        font-size: 12px;
    }
    .form_submit_btn_2 {
        font-size: 12px;
    }
}