.unid-auth {
    width: 100%;
    float: left;
}
/* ボタンの説明文 */
.unid-auth-info {
    width: 48%;
    float: left;
    padding-left: 2%;
}
#unid-auth-regist1, #unid-auth-login {
    height: 48px;
}
/* 端末登録ボタン */
#unid-auth-regist1 {
    width: 190px;
    float: left;
}
/* ログインボタン */
#unid-auth-login {
    width: 50%;
    float: left;
}

/* 幅の狭い画面用 */
@media only screen and (max-width: 768px) {
    .unid-auth {
        margin: 30px 0 50px;
    }
    .unid-auth-info {
        padding-left: 0;
    }
    .unid-auth-info, #unid-auth-regist1, #unid-auth-login {
        width: 100%;
    }
}