Centered post text and pictures

Hello,

how can I change a posiosion of single post?
I would like to center it, without changing photos size.
Now it looks like there is some place for a right side widget, but I haven’t any widget.
This is Exampleof my left posision post.

Thank You for Your help.

Hello,

Please try this CSS code below:

.single-post .content-area.col-md-9 {
    margin: auto;
    float: none;
}

You can add it to: customize > additional CSS.

Regards,
Awan