wp-21

Yeah i understand but wanted to know that why the featured image is not displayed in case of the second post i.e. css modifications.

Pls post the link to your site.

If you have not selected any featured image then how can it show up on the site.
and to which image are you referring to , there are currently three images on the page.
And with the second post namely: CSS Modifications , i do not see any featured image.

On your style.css line 1436 and 1440 c

modify 1436 to:

.site-content {
    margin: 1.71429rem 0 0;
    padding: 0 20px;
}

modify 1440 to:

body.template-front-page .site-content, body.single-attachment .site-content, body.full-width .site-content {
    width: 96%;
}

You need to post the link to your site.

yeah that’s right,in content.php

For body simply refer to the body element like:

body{ font-size:13px;}