randomrequest

It appears you have resolved this issue. The home page loaded wider than 300px with the post/text content also loading greater than 300px.

If you have not resolved this issue, please clarify what specific content is troubling you or if you are refering to the

/* =Content
————————————————————– */

section in your style.css file.

There is not enough information in your question.
Are you trying to use Widgets to display the content you refer to as ads?

There is also no way to understand how your site is messed up, which is another way to understand the issue.

This article discusses adding widgets up by/with the header:
https://www.realestatebloglab.com/twenty-ten-child-theme-add-widget-areas/

The images load for me in Safari, however, they were slow to load.

Hi,

1) If you have not already, create a child theme.

2) In the editor, select Stylesheet (style.css0 from the right side menu.

3) Scroll down and look for this section::

/* =Header
————————————————————– */

#header {
padding: 30px 0 0 0;
}
#site-title {
float: left;
font-size: 30px;
line-height: 36px;
margin: 0 0 18px 0;
width: 700px;
}
#site-title a {
color: #000;
font-weight: bold;
text-decoration: none;
}
#site-description {
clear: right;
float: right;
font-style: italic;
margin: 15px 0 18px 0;
width: 220px;
}

/* This is the custom header image */
#branding img {
border-top: 4px solid #000;
border-bottom: 1px solid #000;
display: block;
float: left;
}

4) Change just these two areas as shown below.

#site-title {
display: none;
}

#site-description {
display: none;
}