This is odd. The first time I open the page there is a block of white space at the bottom and the code block Tom provided is nowhere to be found. If I refresh the page the css code shows up and the block of white space disappears. The style shows up just before the closing </head> tag:
<style id='generatepress-custom-css' class='siteorigin-custom-css' type='text/css'>
.one-container.page-id-134 .site-content,
.page-id-134 .hentry,
.one-container.page-id-134 .inside-article {
padding-bottom: 0;
margin-bottom: 0;
}
</style>
</head>
If I clear the browser cache and reload the page, the white space returns. Maybe some sort of cache issue, or conflict with the page builder?