main#main {
    min-height: calc(100vh - 430px);
}
.entry-content::after {
    display: block;
    clear: both;
    content: "";
}

.sidebar hr {
    padding-top: 1rem;
    margin: 0 2rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--ocker);
}

.menu-item .active {
    font-weight: 600;
    letter-spacing: 0.1em;
}

.qr-scanner .input-group {
    justify-content: center;
}

#reader video {
    max-width: 100%;
}

#error_message {
    position: absolute;
    left: 1em;
    margin-top: 5px;
    background: #ffffff;
    border: 2px solid red;
    width: calc(100% - 2em);
    border-radius: 3px;
    display: none;
    color: red;
    text-align: center;
    padding: 0.5em;
    z-index: 2;
    box-shadow: var(--oxydrot) 6px 6px 10px;
}
#error_message:after,
#error_message:before {
    left: 15%;
    bottom: 100%;
    border: 2px solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}
#error_message:after {
    border-color: rgba(255, 255, 255, 0);
    border-bottom-color: #ffffff;
    border-width: 12px;
    margin-left: -12px;
}
#error_message:before {
    border-color: rgba(113, 158, 206, 0);
    border-bottom-color: red;
    border-width: 14px;
    margin-left: -14px;
}
ul.error li {
    padding-top: 0.5em;
}
ul.error li a {
    cursor: pointer;
}