White bar on the home page

Site URL: https://www.comms8.com/#home

Hi, I am having a question on the home page. I am not sure about why there are a white between home page and the about page. May I know how to delete it? 

Add to Home > Design > Custom CSS

#content-wrapper [data-url-id="home"] .content.has-main-image {
    display: none !important;
}