Make text Aligned Full instead of Left Justified

How do I make the default text for posts Full versus Left Justified?

 

Colorway theme - http://kaocoaching.com

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.content-wrap #blogmain img.postimg {
float: none;
}

 

Thank you! Is there a way to make this the case for all of the pages?

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

a img.alignleft {
float: none!important;
}
a img.alignright {
float: none!important;
}
.content-wrap img {
float: none!important;
}