/*
 Theme Name:  Divi Child Theme
 Theme URI:    http://parentheses.pk
 Description:  Child Theme for Divi
 Author:       Parentheses
 Author URI:   http://parentheses.pk
 Template:     Divi
 Version:      1.0.0
*/

/*****Add any custom CSS below this line*****/
/*** Take out the divider line between content and sidebar ***/
.post-type-archive-property #main-content .container:before,
.post-type-archive-rental #main-content .container:before,
.post-type-archive-land #main-content .container:before,
.post-type-archive-business #main-content .container:before,
.post-type-archive-commercial #main-content .container:before,
.post-type-archive-commercial_land #main-content .container:before,
.post-type-archive-rural #main-content .container:before {
	background: none;
}

/*** Expand the content area to fullwidth ***/
@media (min-width: 981px){
	.post-type-archive-property #left-area,
	.post-type-archive-rental #left-area,
	.post-type-archive-land #left-area,
	.post-type-archive-business #left-area,
	.post-type-archive-commercial #left-area,
	.post-type-archive-commercial_land #left-area,
	.post-type-archive-rural #left-area {
		width: 100%;
		padding: 23px 0px 0px !important;
		float: none !important;
	}
}
Single CSS
/*This is the full example code for making single listing pages full width.

/*** Take out the divider line between content and sidebar ***/
.single-property #main-content .container:before,
.single-rental #main-content .container:before,
.single-land #main-content .container:before,
.single-business #main-content .container:before,
.single-commercial #main-content .container:before,
.single-commercial_land #main-content .container:before,
.single-rural #main-content .container:before {
	background: none;
}

/*** Expand the content area to fullwidth ***/
@media (min-width: 981px){
	.single-property #left-area,
	.single-rental #left-area,
	.single-land #left-area,
	.single-business #left-area,
	.single-commercial #left-area,
	.single-commercial_land #left-area,
	.single-rural #left-area {
		width: 100%;
		padding: 23px 0px 0px !important;
		float: none !important;
	}
}

/*** Hide Sidebar (not needed if sidebar removed in single-listing.php )***/
.single-property #sidebar,
.single-rental #sidebar,
.single-land #sidebar,
.single-business #sidebar,
.single-commercial #sidebar
.single-commercial_land #sidebar,
.single-rural #sidebar {
	display:none;
}