Hide is-ajax-search-details

I have seen this topic and I have tried what was suggested, but when hovering over a search result, the details of the product are still shown on the right.

I have also tried changing it to the following, with no luck:

.is-ajax-search-post-details {
display: none !important;
}

When I inspect element in Chrome and change is-ajax-search-details to the following, then it hides the details until I hover over another item:

<div id=”is-ajax-search-details-6389″ class=”is-ajax-search-details” style=”top: 163px; left: 1110px; display: none;”>

How can prevent details being shown when hovering over search results?

Thank you.