Thank you, but while that did make it slightly larger, it did not make it full width. Is there another setting I am missing?
This is how my custom css code now looks.
/*
Welcome to Custom CSS!
To learn how this works, see https://wp.me/PEmnE-Bt
*/
.content {
width: 100%;
padding-right: 0;
}
.sidebar {
display: none;
}