html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px;
}

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

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

h3 {
    text-align: center;
}

.frame {
    width: 100%;
}

.frame tr td {
    text-align: center;
}

.content {
    background-color: #ffffff;
    width: 580px;
    margin: 0px auto;
}

.content tr td {
    padding: 10px;
    text-align: left;
}

.content p {
    padding-bottom: 1em;
}

.content li {
    padding-bottom: 1em;
}

.content-grey {
    background-color: darkgrey;
}

.btn-success {
    margin-bottom: 5px;
}

/* for newer renderer */
@media only screen and (min-device-width: 10px) {
    .content {
        width: auto;
        max-width: 580px;
    }
}

.flex-justify-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.height-500px {
    height: 500px;
}

.header img {
    height: 100px;
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    line-height: 50px;
    box-shadow: inset 0px 1px 0 rgba(0, 0, 0, .25); /* border at top of footer*/
}

.footer img {
    height: 1.4em;
}