.flex {
    display: flex;
    align-items: flex-start;
}

#schema_container {
    width: 1170px;
    background-color: white;
    position: relative;
    min-height: 200px;
    flex-shrink: 1;
}

#schema_container img {
    display: block;
    width: auto;
    height: auto;
}

#schema_loader {
    display: none;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 400px;
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 5px solid #e0e0e0;
    border-top-color: #555;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

aside hr {
    border: none;
    border-top: 1px solid #ddd;
    margin: 0;
}

aside button.active {
    background-color: #b8c200;
}