body {
    background: #f4f6f9;
}
.card {
    border: none;
    border-radius: 10px;
}
.navbar-brand {
    letter-spacing: .5px;
}
table td, table th {
    vertical-align: middle;
}
#htmlContent, #emailsBox {
    font-family: 'Courier New', monospace;
    font-size: .85rem;
}
.sticky-top {
    z-index: 10;
}