IDX Property Search Function

Site URL: https://www.rebeccalarsen.com/slo-properties

After adding the code given to me by the multiple listing service that I belong to into the Code Section that I added to the page, the search function is only showing the very top of the search form.  Any ideas on how to enlarge the section so that the entire form shows?

Add to Design > Custom CSS

iframe[src*="matrix.crmls"] {
    height: 1000px !important;
}