I have completely lost my left sidebar

I installed for testing Max Mega Menu widget on the content sidebar, in result my menu on right sidebar stopped float along with the page. I read on wordpress support page that your right sidebar width has changed and also I need to remove “boarder” related code in Style.css source code. I went to the my home source code from my admin page and look for .sidebar section (7.0) and delete the following:
1) from #secondary:
padding: 0 10px;
position: relative;
z-index: 2;

2) from Content sidebar..
border-top: 1px solid rgba(0, 0, 0, 0.1);
border-bottom: 1px solid rgba(0, 0, 0, 0.1);
color: #767676;
padding: 48px 10px 0;

Here is a place in the source code I made the changes:

/**
 * 7.0 Sidebars
 * -----------------------------------------------------------------------------
 */

/* Secondary */

#secondary {
	background-color: #000;
	border-top: 1px solid #000;
	border-bottom: 1px solid rgba(255, 255, 255, 0.2);
	clear: both;
	color: rgba(255, 255, 255, 0.7);
	margin-top: -1px;
	padding: 0 10px;
	position: relative;
	z-index: 2;
}

.site-description {
	display: none;
	font-size: 12px;
	font-weight: 400;
	line-height: 1.5;
}

/* Primary Sidebar */

.primary-sidebar {
	padding-top: 48px;
}

.secondary-navigation + .primary-sidebar {
	padding-top: 0;
}

/* Content Sidebar */

.content-sidebar {

	border-top: 1px solid rgba(0, 0, 0, 0.1);
	border-bottom: 1px solid rgba(0, 0, 0, 0.1);
	-webkit-box-sizing: border-box;
	-moz-box-sizing:    border-box;
	box-sizing:         border-box;
	color: #767676;
	padding: 48px 10px 0;

}

/**

upon update the file, I notice the left sidebar disappear. I went back to the source code and replace the code back but no luck. Looks like I went to wrong place in source code to fix my menu floating again. I am new with the WordPress. My webpage is ready for prime time. I really appreciated your help and support

https://cde.97d.myftpupload.com

Please help