html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px;
}

.footer .row {
    justify-content: center;
    align-items: center;
    text-align: center;
    font-weight: bold;
    font-size: 1.2rem;
}

/* 在手机端设置.record-title下的两个span元素换行显示 */
@media (max-width: 767px) {
    .body_bg {
        margin-top: 1rem !important;
    }

    main {
        margin-bottom: 50px;
    }

    .footer_css {
        line-height: 30px;
    }
    .navbar-nav {
        flex-direction: row;
    }

    .navbar-toggler {
        display: none;
    }

    .navbar-nav > li {
        margin-right: 10px;
    }

    .navbar-collapse {
        flex-basis: content;
        display: block;
    }

}