sleek bluey calendar

I’m using a theme called sleek bluey from:

This is how it looks with the calendar:

This is the full sidebar code:

<div id="sidebar">
		<ul>
			<strong><li class="widget widget_calendar">
				<?php get_calendar();?>
			</li></strong>
<?php if ( function_exists('dynamic_sidebar') && dynamic_sidebar(1) ) :
?>
<?
 else : ?>

			<li class="widget_categories"><h2>Going to College</h2>
				<ul>
				<?php wp_list_cats('sort_column=name&optioncount=0'); ?>
				</ul>
			</li>

			<?php get_links_list(); ?>

			<li class="widget_meta"><h2>Members</h2>
				<ul>
					<?php wp_register(); ?>
					<li><?php wp_loginout(); ?></li>

					<li><a href="https://www.ads-software.com/" title="Powered by WordPress, state-of-the-art semantic personal publishing platform.">WordPress</a></li>
					<?php wp_meta(); ?>
				</ul>
			</li>

<?php endif; ?>
		</ul>
	</div>

That top bolded part is the calendar. When I remove that it then looks like this:

This is the sidebar codes in style.css (stylesheet):

/* sidebar*/

#blog_right #sidebar{
	padding-left:10px;
	width:100%;
}

#blog_right #sidebar ul{
	padding:0px;
	margin:0px;
}
#blog_right #sidebar li{
	padding:0px;
	margin:0px;
	list-style-type:none;
}

div#blog #blog_right #sidebar .widget_calendar{
	padding-bottom:35px;
	padding-left:15px;
}

div#blog #blog_right #sidebar table#wp-calendar{
	font-size:11px;
	color:#003471;
	font-weight:normal;
	width:90%;
}
div#blog #blog_right #sidebar table#wp-calendar caption{
	font-weight:bold;
	font-size:14px;
	padding:0px;
	margin:0px;
	padding-top:5px;
}

div#blog #blog_right #sidebar table#wp-calendar thead th{
	font-weight:bold;
	color:#ffffff;
	text-align:center;
}
div#blog #blog_right #sidebar table#wp-calendar td {
	padding:2px;
}
div#blog #blog_right #sidebar table#wp-calendar td a{
	background:#accfe9;
	padding:2px;
}
div#blog #blog_right #sidebar table#wp-calendar tfoot a{
	background:none;
	color:#000000;
	font-weight:bold;
}

#blog_right #sidebar h2{
	color:#003471;
	font-size:18px;
	font-family:Arial, Helvetica, sans-serif;
	margin:0px;
	padding-bottom:5px;
	padding-top:15px;
	padding-left:15px;
	font-weight:normal;
	background:url(images/h2_li.gif) no-repeat center center;
	height:31px;
}

#blog_right #sidebar ul li{
	color:#2b2e31;
	font-size:11px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	font-weight:bold;
}

#blog_right #sidebar li a{
	color:#2b2e31;
	font-size:11px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	text-decoration:none;
	font-weight:normal;
	line-height:19px;
}

#blog_right #sidebar ul li ul li{
	font-size:11px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	font-weight:bold;
	padding-right:5px;
	padding-bottom:5px;
	background:none;
	padding-left:15px;
}
#blog_right #sidebar ul li ul li ul li{
	font-size:11px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	font-weight:normal;
	color:#2b2e31;
	padding-bottom:0px;
	padding-left:5px;
}
#blog_right #sidebar ul li ul li ul li a{
	font-size:11px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	font-weight:normal;
	color:#2b2e31;
}

#blog_right #sidebar ul li ul li{
	border-bottom:0;
	background: url(images/solid_li.gif) center bottom no-repeat;
}

#blog_right #sidebar ul li.widget_categories ul li ul li{
	border-bottom:0;
	background: none;
}

#blog_right #sidebar ul li ul li ul{
	padding-left:10px;
}

#blog_right #sidebar ul li ul li a{
	background: url(images/bl_li.gif) left top no-repeat;
	padding-left:9px;
}

#blog_right #sidebar ul li.widget_categories ul li a{
	background: url(images/cat_li.gif) left top no-repeat;
	padding-left:9px;
}

#blog_right #sidebar ul li.widget_archives ul li a{
	background: url(images/ar_li.gif) left top no-repeat;
	padding-left:9px;
}

#blog_right #sidebar ul li.widget_meta ul li a{
	background: url(images/meta_li.gif) left top no-repeat;
	padding-left:9px;
}

#blog_right #sidebar ul li.widget_categories li ul.children li a{
	background: url(images/line_li.gif) left top no-repeat;
	padding-left:9px;
}

/*inside*/

#blog_left #blog_comm{
	margin-left:100px;
	float:left;
	width:465px;
}

#blog_left #blog_comm h2{
	font-size:23px;
	font-weight:bold;
	font-style:italic;
	padding-left:0px;
	color:#0072bc;
	position:relative;
	top:-10px;
}

#blog_left #blog_comm .comm_panel{
	height:20px;
	background:#d5e2f3;
	padding-right:10px;
	padding-left:10px;
	padding-top:4px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	width:94%;
}

#blog_left #blog_comm .comm_panel a{
	font-weight:bold;
}

#blog_left #blog_comm .comm_text{
	font-family:Verdana, Arial, Helvetica, sans-serif;
	line-height:18px;
	padding-top:5px;
	padding-bottom:5px;
	padding-left:5px;
	padding-right:5px;
	border-bottom:3px solid #adc7e7;
	color:#555658;
	width:94%;
}

#blog_left #blog_comm .comm_text p{
	padding:0px;
	margin:0px;
	margin-top:10px;

}

#blog_left #comments_from_bg{
	background:url(images/blog_form_bg.gif) no-repeat top left;
	width:460px;
	padding-bottom:20px;
}

#blog_left #blog_comm #comm_post_title{
	width:430px;
	height:65px;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	font-size:23px;
	font-weight:normal;
	padding-left:25px;
	padding-top:10px;
	color:#000000;
	font-style:italic;
}

#blog_left #blog_comm #comm_post_form{
	padding-left:25px;
}

#blog_left #blog_comm #comm_post_form input.text{
	font-size:14px;
}

#blog_left #blog_comm #comm_post_form td{
	list-style:none;
	font-family:Verdana, Arial, Helvetica, sans-serif;
	padding-bottom:10px;
	padding-right:10px;
}

#blog_left #blog_comm #comm_post_form td.right{
	text-align:right;
	vertical-align:top;
}

/* end sidebar*/

I’m guessing I can fix this by editing the style.css somewhere in the code above. I don’t know what exactly it’s doing when I remove the calendar though so it’s hard to find…I think it’s creating a new sidebar section because of the way it makes the new thing right above where it says “Site Admin”

Is there something I can do in the style.css to fix this?