How to decrease the main page width?

if i were you i’d change .nav li & .nav a in your theme’s master.css file to the following code:

.nav li {
float: left;
margin: 0 <strong>13px</strong> 0 0;
}

.nav a {
display: block;
padding: 15px <strong>13px</strong> 15px <strong>13px</strong>;
font-size: 1.3em;
font-family: Helvetica, Arial, sans-serif;
color: #555;
}

that should line things up but check it in other web browsers, especially internet explorer as it has it’s own brand of crazy that it applies to css properties that can make your site look like an absolute state!

Hello, I added

.nav li {
float: left;
margin: 0 <strong>13px</strong> 0 0
}

and

.nav a {
display: block;
padding: 15px <strong>13px</strong> 15px <strong>13px</strong>;
font-size: 1.3em;
font-family: Helvetica, Arial, sans-serif;
color: #555
}

into my Linen PRO Child Theme: Stylesheet (style.css), and checked Firefox and Chrome; however, nothing seemed to have changed?

hi, delete the bits and see if that makes the difference ??

Can you clarify what you mean by the term “bits” please?