html {
    font-size: 14px;
}

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

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

body {
    margin-bottom: 60px;
}

/*============bootstrap4-5===============*/

label {
    display: inline-block;
    margin-bottom: 0.5rem;
    color: #333;
}

.form-group {
    margin-bottom: 1rem;
}

.jumbotron {
    padding: 4rem 2rem;
    margin-bottom: 2rem;
    background-color: #e9ecef;
    border-radius: 0.3rem;
}

a {
    text-decoration: none;
    background-color: transparent;
}

.b {
    font-weight: bold;
}