Styling Trouble

Hi Greg,

I am trying to adjust the style for WPAdverts by inserting the following code into the WP Admin panel, Appearance/Customize/Additional CSS for my theme. I have tried many various snippets for this and haven’t been able to have changes reflected in browser when accessed. The changes I made using the inspect element in the browser were visible without any issue. Do you know what I am not doing correctly for this?? Thanks, Brian

.adverts-options {
    margin-bottom: 24px;
    line-height: 28px;
    overflow: hidden;
    clear: both;
    border: 1px solid #3f7796;
    border-bottom: 2px solid #3f7796;
    padding: 0 12px;
    background-color: #3f7796;
}

The page I need help with: [log in to see the link]