style.css issues on custom theme

My website, pretendcity.org has a custom theme created by someone else. To edit content I use dreamweaver and go into the server to open up the individual files (ex: if I need to add something to the header, I will edit header.php).

My issue is that when I edit/update the style.css file for the website it doesn’t update right away. For example I changed the background color from #353535 to #000000 and there were no changes. So I left the background color as #000000 in style.css for weeks and no changes were found on the website. Then today, WordPress had an automatic update to 3.9.2 and I found the background color suddenly changed to #000000.

Now I’m trying to change it back to #353535 and it will not make any changes.

Here is the style.css for the website:

@charset "UTF-8";
/*
Theme Name: Pretend City Children's Museum
Theme URI: http://pretendcity.org
Description: Pretend City v2
Author: Slava Popov
Author URI: http://laydbak.com
*/

/* =================
0081cd - Blue
83bc34 - Green
353535 - Text
cbcbcb - Borders
==================*/

/* =========== */
/* Page Styles */
/* =========== */

body {
	background: #f0f0f0;
	color: #353535;
	font: 12px Arial, Helvetica, sans-serif;
	margin: 0;
	padding: 0;
	text-align: center;
	width: 100%;
	}
img {border: 0;}
table {margin: 0 0 10px 0; padding: 0; line-height: 19px; vertical-align: top !important; border-spacing:0; border-collapse:collapse;}
td {vertical-align: top !important;}
p {line-height: 19px; padding-bottom: 10px;}
h2, h3, h4, h5, h6 {color: #353535; margin-bottom: 10px;}
h1 {color: #0081cd; font-size: 24px; margin: 0 0 10px 0;}
h2 {color: #353535; font-size: 18px;}
h3 {color: #83bc34; font-size: 16px;}
h3 a {color: #83bc34;}
h4 {font-size: 14px;}
h5 {font-size: 14px;}
h6 {color: red; font-size: 11px;}
hr {
	border: none 0;
	border-top: 1px dashed #ccc;
	height: 1px;
	margin: 20px 0;
	width: 100%;
	}
a {color: #0081cd; text-decoration: underline;}
a:hover {text-decoration: none;}
ul {
	line-height: 19px;
	list-style-type: disc;
	padding: 0 0 20px 20px;}
.wrap {
	background: #FFF;
	border-left: #cbcbcb 1px solid;
	border-bottom: #cbcbcb 1px solid;
	border-right: #cbcbcb 1px solid;
	margin: 0 auto;
	position: relative;
	width: 958px;
	}

/* ======== */
/* Info Bar */
/* ======== */

#infobar {
	background: #353535;
	border-bottom: 1px solid #FFF;
	color: #FFF;
	font-size: 11px;
	height: 30px;
	width: 100%;
	}
#infobar strong {color: #FFF; text-transform: uppercase;}
#infobar div {padding-top: 8px;}
#infobar span {padding-right: 20px;}
#infobar div a {
	font-size: 10px;
	color: #FFF;
	text-decoration: none;
	}
#infobar div a:hover {text-decoration: underline;}

/* ====== */
/* Header */
/*--------*/

header {
	background: url(images/cityscape.png) no-repeat center bottom;
	height: 185px;
	margin: 0 auto;
	width: 960px;
	overflow: hidden;
	}
.logo {
	background: url(images/logo.png) no-repeat;
	float: left;
	height: 52px;
	margin: 43px 0 0 90px;
	width: 242px;
	}
.donate {
	background: url(images/header_donate.png) no-repeat;
	float: right;
	height: 62px;
	margin-top: 40px;
	width: 156px;
	}

.donate:hover {
	opacity:0.5;
	filter:alpha(opacity=50); /* For IE8 and earlier */
}

/*.paypalicon {
	background: none;
	float: right;
	height: 35px;
	width: 156px;
	left: 200px;
	margin-top: 40px;
	}
*/
/*.paypalicon:hover {
	opacity:0.5;
	filter:alpha(opacity=50); /* For IE8 and earlier */}*/

/* ========== */
/* Navigation */
/* ========== */

nav {
	background: #353535;
	color: #FFF;
	height: 29px;
	margin: 0 10px;
	position: relative;
	text-align: left;
	z-index: 10;

	-webkit-border-radius: 5px;
	 -khtml-border-radius: 5px;
	   -moz-border-radius: 5px;
	        border-radius: 5px;
	behavior: url(PIE.htc);
	zoom: 1;
	}
.navspacer {
	height: 20px;
	width: 100%;
	}

/* ==== */
/* Menu */
/* ==== */

.main-navigation {margin-left: -10px;}
.main-navigation a {padding: 5px 10px;}
.main-navigation a:hover {background-color: #83bc34;}
.main-navigation ul.nav-menu, .main-navigation div.nav-menu > ul {
	display: inline-block !important;

	/* IE 7 FIX */
	zoom: 1 !important;
        *display: inline;

	text-align: left;
	width: 100%;
	}
.main-navigation li a, .main-navigation li {
	display: inline-block;

	/* IE 7 FIX */
	zoom: 1;
        *display: inline;

	text-decoration: none;
	}
.main-navigation li a {color: #FFF;}
.main-navigation li a:hover {color: #000;}
.main-navigation li {
	margin: 0;
	position: relative;
	}
.main-navigation li ul {
	display: none;
	margin: 0;
	padding: 0;
	position: absolute;
	top: 100%;
	z-index: 1;
	zoom: 1;
	}
.lt-ie8 .main-navigation li ul {
	display: none;
	margin: 0;
	padding: 0;
	position: absolute;
	top: 100%;
	z-index: 1;
	zoom: 1;
	left: 0;
	}
.main-navigation ul li:hover > ul {
	display: block;
	}
.main-navigation li ul li a {
	background: #3e3e3e;
	border-bottom: 1px solid #353535;
	display: block;
	font-size: 11px;
	padding: 5px 10px;
	/*white-space: normal;*/
	white-space: nowrap;
	}
.main-navigation li ul li a:hover {
	background: #0397de;
	color: #FFF;
	-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.5);
	-moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.5);
	box-shadow: inset 0 1px rgba(255, 255, 255, 0.5);
	}
.menu-toggle {display: none;}
.navwidth1 {width: 115px}
.navwidth2 {width: 110px}
.navwidth3 {width: 120px}
.navwidth4 {width: 145px}
.navwidth5 {width: 100px}
.navwidth6 {width: 125px}
.navwidth7 {width: 148px !important; border-right: none !important;}

ul#menu-navigation > li > ul > li:hover > ul {display:inline-block; width:auto; margin-left:100%; top:0;}

ul#menu-navigation > li > ul > li:hover > ul li {width:100%; display:inline-block;}

ul#menu-navigation > li > ul > li:hover > ul > li:hover > ul {display:inline-block; width:auto; margin-left:100%; top:0;}

ul#menu-navigation > li > ul > li:hover > ul li > li:hover > ul li {width:100%; display:inline-block;}

/* ========================================================================== */

/* ============== */
/* Slider Wrapper */
/* ============== */

#bigbox {
	background: #fbfbfb;
	border: 1px solid #cbcbcb;
	height: 300px;
	margin: 0 auto;
	position: relative;
	width: 936px;
	}
.arrow-up {
	background: url(images/arrowa.png) no-repeat center bottom;
	height: 20px;
	width: 100%;
	}
.arrow-down {
	background: url(images/arrowb.png) no-repeat center top;
	height: 20px;
	width: 100%;
	}

/* ====== */
/* Slider */
/* ====== */

.slider {
	background: #f0f0f0;
	float: left;
	height: 300px;
	position: relative;
	width: 635px;
	}

/* =============== */
/* Sidebar Buttons */
/* =============== */

.sidebar {
	background: #ececec;
	border-left: 1px solid #FFF;
	float: left;
	height: 300px;
	position: relative;
	text-align: left;
	width: 300px;
	}
.purchase_tickets {
	border-bottom: 1px solid #cbcbcb;
	height: 59px;
	position: relative;
	}
.purchase_tickets .icon {
	background: url(images/icon_purchase_tickets.png) no-repeat;
	float: left;
	height: 59px;
	margin-left: 10px;
	width: 60px;
	}
.book_field_trip {
	border-bottom: 1px solid #cbcbcb;
	height: 59px;
	position: relative;
	}
.book_field_trip .icon {
	background: url(images/icon_book_field_trip.png) no-repeat;
	float: left;
	height: 59px;
	margin-left: 10px;
	width: 60px;
	}
.calendar_events {
	border-bottom: 1px solid #cbcbcb;
	height: 59px;
	position: relative;
	}
.calendar_events .icon {
	background: url(images/icon_calendar_events.png) no-repeat;
	float: left;
	height: 59px;
	margin-left: 10px;
	width: 60px;
	}
.plan_party {
	border-bottom: 1px solid #cbcbcb;
	height: 59px;
	position: relative;
	}
.plan_party .icon {
	background: url(images/icon_plan_party.png) no-repeat;
	float: left;
	height: 59px;
	margin-left: 10px;
	width: 60px;
	}
.become_member {
	height: 60px;
	position: relative;
	}
.become_member .icon {
	background: url(images/icon_become_member.png) no-repeat;
	float: left;
	height: 59px;
	margin-left: 10px;
	width: 60px;
	}
.sidebar .txt {
	float: left;
	font-size: 20px;
	font-weight: bold;
	margin-left: 10px;
	padding-top: 19px;
	}
.sidehover:hover {
	background: background-image: -ms-linear-gradient(top, #03adff 0%, #008fd4 100%);
	background-image: -moz-linear-gradient(top, #03adff 0%, #008fd4 100%);
	background-image: -o-linear-gradient(top, #03adff 0%, #008fd4 100%);
	background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #03adff), color-stop(1, #008fd4));
	background-image: -webkit-linear-gradient(top, #03adff 0%, #008fd4 100%);
	background-image: linear-gradient(top, #03adff 0%, #008fd4 100%);
	color: #FFF;
	position: relative;
	}
.sidehover a {
	color: #353535;
	text-decoration: none;
	text-shadow: 1px 1px #FFF;
	}
.sidehover:hover a {
	color: #FFF;
	text-decoration: none;
	text-shadow: -1px -1px #00699b;
	}

/* ============== */
/* 3 Column Boxes */
/* ============== */

.column-wrapper {
	height: 170px !important;
	margin: 0 auto 15px auto;
	width: 938px !important;
	}
.column-wrapper a {text-decoration: none;}
.column1 {
	float: left;
	text-align: center;
	position: relative;
	}
.column2 {
	float: left;
	padding: 0 19px 0 19px;
	position: relative;
	}
.column3 {float: left; position: relative;}
.columnbtn {
	background: #353535;
	color: #FFF;
	font-size: 18px;
	height: 28px;
	padding-top: 7px;
	text-shadow: -1px -1px -1px #1a1b1b;
	width: 300px;
	}

/* ==================== */
/* First Column */
/* ==================== */

.photo .top {
	background: url(images/3box_tour.png) no-repeat;
	height: 135px;
	width: 300px;
	}

/* ======================= */
/* Second Column Home */
/* ======================= */

.exhibit .top {
	background: url(images/3box_exhibit.png) no-repeat;
	height: 135px;
	width: 300px;
	}
.cfcoc {text-align: center;}
.cfcoc a {text-decoration: none;}
.cfcoc .img {
	background: url(images/3box_cfcoc.png) no-repeat center;
	height: 117px;
	margin-top: 10px;
	width: 298px;
	}
.cfcoc .top {
	border-left: 1px solid #cbcbcb;
	border-top: 1px solid #cbcbcb;
	border-right: 1px solid #cbcbcb;
	height: 134px;
	width: 298px;
	}

/* ==== */
/* Body */
/* ==== */

#content {
	margin: 10px auto;
	text-align: left;
	width: 938px;
	}

/* =============== */
/* Blog Page Style */
/* =============== */

.entry-title {
	margin-top: 25px;
}

.entry-footer {
	margin: 25px 0 15px;
	border-bottom: solid 2px #0099FF;
	padding: 5px;
}

/* ======== */
/* Exhibits */
/* ======== */

#exhibit {
	border-top: 1px dotted #CCC;
	height: 50px;
	padding-top: 10px;
	width: 100%;
	}
#exhibit .icon {
	margin: 0;
	padding: 0;
	position: relative;
	}
#exhibit .icon li {
	float: left;
	height: 40px;
	padding: 0 17px 0 0;
	list-style: none;
	text-align: center;
	}
#exhibit .icon li.first  {
	padding-right: 15px;
	text-align: left;
	}
#exhibit .icon li.last  {
	padding: 0;
	text-align: right;
	}
.sponsor_text {
	font-size: 11px;
	font-style: italic;
	margin: -10px 10px 0 0;
	padding-bottom: 10px;
	}

/* ============== */
/* Footer Wrapper */
/* ============== */

#footer {
	background: #282828;
	height: 250px;
	margin: 20px auto 0 auto;
	width: 960px;
	}
#footer .wrapper {
	color: #FFF;
	height: 250px;
	width: 960px;
	}
#footer h2 {
	color: #FFF;
	font-size: 18px;
	font-weight: normal !important;
	margin: 0;
	padding: 0 0 10px 0;
	}
#footer a {
	color: #8f8f8f;
	text-decoration: none;
	}
#footer a:hover {color: #FFF;}

/* ================= */
/* Footer Newsletter */
/* ================= */

#footer .newsletter {
	background: #2f2f2f;
	float: left;
	height: 230px;
	margin: 10px;
	text-align: left;
	width: 300px;
	}
#footer .newsletter .signup {
	background: url(images/footer_col1_signup.png) no-repeat;
	height: 45px;
	margin: 0 auto;
	}
#footer .newsletter .txt {
	padding-top: 5px;
	}	

/* ========= */
/* MailChimp */
/* ========= */

#mc_signup_form {margin-top: 15px;}
.mc_error_msg {font-size: 11px; color: red;}
.mc_var_label {
	color: #8cc63f;
	font-weight: bold;
	}
.mc_input {
	-webkit-border-radius: 5px;
	 -khtml-border-radius: 5px;
	   -moz-border-radius: 5px;
	        border-radius: 5px;
	behavior: url(PIE.htc);

	position: relative;
	background: #fbfbfb;
	border: 1px solid #cbcbcb;
	color: #353535;
	font-size: 12px;
	display: block;
	height: 20px;
	margin: 10px 0 10px 0;
	padding: 5px;
	width: 268px;
	}
#mc_signup_form .button {
	background:url(images/btn.png) no-repeat;
    cursor: pointer;
    width: 116px;
    height: 32px;
    border: none;
	}
#mc_signup_form .button:hover {
	opacity: 0.5;
	filter: alpha(opacity=50);
}

/* ========================= */
/* Footer Corporate Sponsors */
/* ========================= */

#footer .corpSponsors {
	background: #2f2f2f;
	float: left;
	height: 230px;
	margin: 10px;
	text-align: left;
	width: 300px;
	}
.fade {
   opacity: 0.2;
   -webkit-transition: opacity .5s ease-in-out;
      -moz-transition: opacity .5s ease-in-out;
           transition: opacity .5s ease-in-out;
   }
.fade:hover {opacity: 1;}
.sponsor_top_row {padding: 0 0 10px 5px;}
.sponsor_bottom_row {padding-left: 5px;}

/* ================================= */
/* Footer Social Media & Quick Links */
/* ================================= */

#footer .smql {
	float: left;
	height: 230px;
	margin: 10px;
	text-align: left;
	width: 300px;
	}
#footer .smcol {
	float: left;
	width: 93px;
	}
#footer .qlcol {
	float: left;
	margin-top: -6px;
	width: 93px;
	}

/* =================== */
/* Footer Social Media */
/* =================== */

#footer .top {
	background: #2f2f2f;
	height: 105px;
	margin-bottom: 20px;
	text-align: left;
	}
#footer .top .row {
	float: left;
	font-size: 11px;
	padding-bottom: 6px;
	width: 280px;
	}
#footer .top .rowBottom {
	float: left;
	font-size: 11px;
	width: 280px;
	}
#footer .top .icon {
	float: left;
	height: 16px;
	margin: -2px 2px 0 0;
	width: 16px;
	}
#footer .top .fb {background: url(images/social_fb.png) no-repeat;}
#footer .top .yt {background: url(images/social_youtube.png) no-repeat;}
#footer .top .ig {background: url(images/social_ig.png) no-repeat;}
#footer .top .pin {background: url(images/social_pintrest.png) no-repeat;}
#footer .top .tw {background: url(images/social_twitter.png) no-repeat;}
#footer .top .gplus {background: url(images/social_googleplus.png) no-repeat;}
#footer .top .ta {background: url(images/tripadvisoricon2.png) no-repeat;}
#footer .top .gr {background: url(images/social_gr.png) no-repeat;}
#footer .top .flickr {background: url(images/social_flickr.png) no-repeat;}
#footer .top .yelp {background: url(images/social_yelp.png) no-repeat;}

#footer .bottom {
	background: #2f2f2f;
	font-size: 11px;
	height: 105px;
	line-height: 16px;
	text-align: left;
	}

/* ========= */
/* Copyright */
/* ========= */

#copyright {
	background: #FFF;
	border: #cbcbcb 1px solid;
	font-size: 10px;
	height: 24px;
	margin: 20px auto;
	padding: 11px 10px 0 10px;
	width: 938px;
	}
#copyright a {
	color: #8f8f8f;
	text-decoration: none;
	}
#copyright a:hover {color: #008fd4;}
#copyright .left {
	color: #8f8f8f;
	float: left;
	padding-bottom: 10px;
	text-align: left;
	width: 50%;
	}
#copyright .right {
	float: left;
	text-align: right;
	width: 50%;
	}

/* === */
/* 404 */
/* === */

.notfound .image {
	background: url(images/404.png) no-repeat right;
	float: right;
	height: 364px;
	margin: 34px -10px 0 547px;
	position: absolute;
	width: 401px;
	}
.notfound input {
	-webkit-border-radius: 5px;
	 -khtml-border-radius: 5px;
	   -moz-border-radius: 5px;
	        border-radius: 5px;
	behavior: url(PIE.htc);

	position: relative;
	background: #fbfbfb;
	border: 1px solid #cbcbcb;
	color: #353535;
	font-size: 12px;
	padding: 5px;
	}

.event_espresso_form_wrapper p.section-title {display: none;}
.ee-featured-image {margin-left: 20px;}

.hoverfade:hover {
	opacity: 0.5;
	filter:alpha(opacity=50); /* For IE8 and earlier */
	}

.greydout {
  -webkit-opacity: 1;
  -moz-opacity: 1;
  opacity: 1;
  width: 270px;
  height: 88px;
}

.greydout:hover {
  -webkit-opacity: 0.75;
  -moz-opacity: 0.75;
  opacity: 0.75;
  width: 270px;
  height: 88px;
}

#redbox {
	background: url(../../../images/redbox.gif);
}

#milestonescontainer {
	width: 835px;
	overflow: hidden;
	display: inline-block;
} 

#column1of2 {
	width: 400px;
	margin-top: 10px;
	float: left;
}

#column2of2 {
	width: 400px;
	margin-top: 10px;
	float: left;
}

ul {
	list-style-type: square;
}

li p {
	color: #000;
	font-size: 14px;
	line-height: 14px;
}

.orange {
	color: #f48a32;
}

.magenta {
	color: #ef1a98;
}

.blue {
	color: #0081cd;
}

.red {
	color: #f14048;
}

.purple {
	color: #ae0874;
}

.green {
	color: #83bc34;
}

.black {
	color: #000;
}

.grey {
	color: #999;
}

.clear {
	clear: both;
}

.post-container {
    overflow: auto
}
.post-thumb {
    float: left
}
.post-thumb img {
    display: block
}
.post-content {
	overflow: hidden;
}
.post-title {
    font-weight: bold;
    font-size: 40px;
}