Blog Section only one Post

Please provide website url

Sorry, my website is not online at the moment.

Do you understand what i mean?

Hello,

For that open index.php file. Search “home_blog_content” and decrease count 3 to 1 as shown in the screenshot (https://screencast.com/t/PvvQJ8c0).
After that go to the Appearance > Customize > Custom CSS and paste code given below.

.home_blog_content .post {
    margin-right: 0px;
    max-width: 100%;
}
img.attachment-post_thumbnail_front.wp-post-image {
    width: 100%;
    height: auto;
}

Please create child theme (https://www.themehunk.com/how-to-create-a-child-theme-using-themehunk-themes/) before editing theme files.

Thank You
ThemeHunk.