Noob needs help changing text in theme

Can anyone help

No one?

if you can post your url I can see the code tell exactly where to make the change image does not help

Isn’t this the code???

#sidebar2 {
	float: right;
	width: 200px;
	font: 11px Arial;
	color: #999999;
	border:1px solid #02548B;
	border-right:2px solid #02548B;
	border-bottom:3px solid #02548B;
	background:#CBECFB;
	margin-left:1px;
	margin-top:20px;
}

#sidebar2 h2 {
	width: 200px;
	height: 30px;
	padding-top:8px;
	margin-bottom: 2px;
	font: bold 14px tahoma;
	color: #CBECFB;
	text-align:center;
	background: url("images/sidebar_title.gif") no-repeat center;
}

#sidebar2 a {
	color: #247AB4;
	text-decoration: none;
}

#sidebar2 a:hover {
	text-decoration: underline;
}

#sidebar2 ul {
	margin: 0;
	padding: 0 5px;
	list-style-type: none;
}

#sidebar2 ul li {
	color: #656565;
	font: 12px Arial;
}

#sidebar2 ul li a {
	color: #247AB4;
	text-decoration: none;
	padding: 5px 5px 5px 17px;
	height:17px;
	margin:0;
	display: block;
	background: url("images/sidebar_menu.gif") no-repeat bottom left;
}

#sidebar2 ul li a:hover {
	text-decoration: none;
	background: url("images/sidebar_menu_hover.gif") no-repeat bottom left ;
}

#sidebar2 ul li ul {
	margin: 0;
	padding: 0;
	background: none;
}

#sidebar2 #searchform {
display:none;
}

#sidebar2 #searchform #s {
	width: 180px;
}

#sidebar2 #calendar_wrap {
	width: 190px;
	margin: 0 auto;
	padding-top: 5px;
}

#sidebar2 #calendar_wrap table {
	width: 190px;
}

#sidebar2 #calendar_wrap caption {
	margin: 0 auto;
	font-weight: bold;
}

#sidebar2 #calendar_wrap tbody {
	text-align: right;
}

#sidebar2 #calendar_wrap tfoot #next {
	text-align: right;
}

#sidebar2 #calendar_wrap #today {
	font-weight: bold;
}

#sidebar2 .textwidget {
	padding: 0 5px;
}

.sidebar_bottom {
	margin: 0px;
	padding: 0px;
	clear:both;
	height: 14px;
	width: 199px;
	display:block;
	position:relative;

}

https://aquakeepers.info/tag/fundamentals/

So is it the test in the advertisment box that you want to change..? You want to make it bold? I’d also put a margin around it..

Change this code
#sidebar2 a {
color: #247AB4;
text-decoration: none;
To

#sidebar2 a {
color:#247AB4;
font-weight:bold;

Thanks Govpatel. That did the trick