Labpeak Science Research Wordpress Theme - hide onmouseover data output

I bought the Labpeak theme a while ago and recently discovered a problem when I places the “Client logo” carousel at the bottom of the front page. At heir own page I turned off the option to show (title) when the logo was moused over, but at the front page it still shows, and it is highly unwanted. This onmouseover event is found in the css-class “tm-client-logo-box-w [data-tooltip]:before,” and some other “data-tooltip”. I have tried to overrun the css output with “display:none” in the custom code field, but it simply will not work, and it is no possibility to turn the function off when this element is placed on the front page.
I am a bit stuck.