Ninja open template style options > edit layout > edit Masthead position
Set the width to Fluid to make it full width.
Hi
The module is on different position
use this code in custom css first line
.t4-body-top-1 .container {
max-width: 100%;
padding: 0px;
}
For description text size use this code
div.ja-masthead .ja-masthead-detail .ja-masthead-description {
color: #fff;
font-size: 16px;
margin-top: 16px;
max-width: 550px;
margin-left: auto;
margin-right: auto;
}