Font Weight

Hi Everyone,

Just trying to tweek the font on my website. Have managed to do it for the headers but can’t seem to get the same weight for my sidebar and list of entries.

https://constantincerdan.com

Bascially, I’d like the same font weight as the title of the site (CONSTANTIN CERDAN) which I have set at font-weight:100; but as mentioned i’m having no luck with the rest. Am absoloutly stumped.

Here is my stylesheet:

/*
Theme Name: Minimalist
Description: Fast loading minimalist theme, utilising mootools, with 5 different colour schemes and no images.
Version: 1
Author: Joey Robinson
Author URI: https://www.techdesigns.co.uk
Latest updated: 7th October 2009
Tags: two-columns, white, black, blue, green, silver, fixed-width, left-sidebar
*/
html, body{ padding:27px 0px 10px 125px; margin:0px 0px 0px 0px; text-align:center; font-weight:100; font-family:Arial; font-size:10px;} 

#page{ width:900px; text-align:left; margin-left:100px; font-weight:100; margin-right:auto;} 

#header{ position:relative; width:900px; margin:0px 0px 0px -230px; padding: 0px; height:40px; font-weight:100; overflow-x:hidden;}
#header h1{ position:relative; float:left; margin:0px 0px 0px 0px; width: 650px; padding:0px; font-family:Arial; font-weight:100; font-size:12px;}
#header h1 a{ text-decoration:none;}
#header h1 a:hover{ text-decoration:none;}
#header h2{ position:relative; float:left; clear:left; margin:0px 0px 0px 0px; width: 650px; padding:0px; font-family:Arial; font-weight:100; font-size:11px;} 

#leftcol{ width:230px; float:left; font-weight:100; position:relative; padding: 0px 20px 0px 0px; margin:-5px 0px 0px -480px; text-align:right; overflow-x:hidden; }

#menu {font-weight:100; margin:0px 0px; text-align:right; font-family:Arial; font-size:11px; }
#menu a {font-weight:100; font-family:Arial; font-size:11px; text-decoration:none;}
#menu a:hover {font-weight:100; font-family:Arial; font-size:11px; text-decoration:none;}

h2.menuheader {cursor: pointer;font-family:Arial; font-weight:100; font-size:11px; margin:0px; padding:0px;}

#menu ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: font-weight:100; none; width:230px; clear:left; float:right;}
#menu ul li{margin: 0px 0px 0px 0px; display: block; font-weight:100; font-family:Arial; font-size:11px;}
#menu ul li a{ width: 225px; display: block; padding: 5px 0px 5px 5px; text-decoration:none; font-weight:100; font-family:Arial; font-size:11px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li a:hover{ text-decoration:none; }
#menu ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li a{ width: 205px; display: block; padding: 5px 20px 5px 5px; text-decoration:none; font-weight:100; font-family:Arial; font-size:11px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li a:hover{ text-decoration:none; }
#menu ul li ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li ul li a{ width: 185px; padding: 5px 40px 5px 5px; display: block; text-decoration:none; font-weight:100; font-family:Arial; font-size:11px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li ul li a:hover{ text-decoration:none; }
#menu ul li ul li ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li ul li ul li a{ width: 165px; padding: 5px 60px 5px 5px; display: block; text-decoration:none; font-weight:100; font-family:Arial; font-size:11px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li ul li ul li a:hover{ text-decoration:none; }

ul#recentcomments {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; width:230px; clear:left; float:right;}
ul#recentcomments li{margin: 0px 0px 0px 0px; display: block; font-weight:100; font-family:Arial; font-size:12px;}
ul#recentcomments li a{ width: 225px; display: block; padding: 5px 0px 5px 5px; text-decoration:none; font-weight:100; font-family:Arial; font-size:8px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
ul#recentcomments li a:hover{ text-decoration:none; }
#recentcomments a{ text-decoration:none; font-weight:100; font-family:Arial; font-size:8px;}
#recentcomments a:hover{ text-decoration:none; font-weight:100; font-family:Arial; font-size:8px; }

#maincol{ float:left; display:inline; position: relative; width:atuo; margin:-5px 0px 0px -230px; font-family:Arial; font-weight:100; font-size: 12px;overflow-x:hidden; text-align:left;}
#maincol h1 {margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:both;}
#maincol h2 { margin:0px 0px 0px px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:both;}
#maincol h2 a{ text-decoration:none;} 

#maincol h3 { margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:both;}
#maincol h4 { margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100;font-size:11px; clear:both;}
#maincol h5 { margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:both;}
#maincol h6 { margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:both;}
#maincol p{ font-size: 12px; font-weight:100; line-height:1.7em; clear:left;}
#maincol p a:hover{ text-decoration:none;}
#maincol ul{ font-size: 12px; font-weight:100; line-height:1.7em; clear:left;}
#maincol ol{ font-size: 12px; font-weight:100; line-height:1.7em; clear:left;}

h2.contentheader{ cursor: pointer; position:relative; float:left; margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:11px; clear:left;}
h2.contentheader:hover{ }
h2.contentheader:active{ }

.content{clear:both;}

.permalink{ margin:0px 0px 0px 0px; padding:0px; font-family:Arial; font-weight:100; font-size:8px; clear:both;}
.permalink a{ text-decoration:none;}
.permalink a:hover{ text-decoration:none;} 

table#calendar_wrap {width:230px; overflow:hidden;clear:both; }

#wp-calendar{font-family: Arial; font-size: 11px; text-decoration:none; clear:both;width:210px; margin: 6px auto 6px auto; padding: 0px 10px 0px 10px;}
#wp-calendar a{font-family: Arial; font-size: 12px; text-decoration:none; }
#wp-calendar a:hover{font-family: Arial; font-size: 12px; text-decoration:none; }

blockquote { margin:20px; padding:8px 8px 8px 15px;}
blockquote p {background-color:inherit; font-size:0.9em; line-height:1.3em;}
label {background-color:inherit; font-size:0.9em; font-weight:100;}
table#wp-calendar {margin:0 0 20px; width:140px;}
code {font-size:1.2em; display:block; padding:5px 5px 5px 8px; margin:5px 0 15px 0;}

#respond{font-weight:100;}
#s,#submit { font-size:0.9em; margin:0 0 16px; padding:4px; width:120px;}
#author,#email,#url,#comment { font-family:Arial,Tahoma,Arial,Arial; font-size:1em; font-weight:100; margin:0; padding:4px;}
#commentsection {margin:25px 0 0;}
#commentsection p {margin:0 0 6px;}

img.centered {display:block; margin-left:auto; margin-right:auto;}
img.alignright {padding:4px; margin:0 0 2px 7px; display:inline;}
img.alignleft {padding:4px; margin:0 7px 2px 0; display:inline;}
.aligncenter { display: block; margin-left: auto; margin-right: auto;}
.alignright {float:right;}
.alignleft {float:left;}

.divider{height: 25px; width:604px; background: url(img/divider.jpg) top center no-repeat; margin: 10px auto 5px auto;}
.left { float:left; margin:10px 15px 10px 0;}
.right { float:right; margin:10px 0 5px 10px;}
.center { margin:5px auto 11px; text-align:center;}
.textright {text-align:right;}
.small {font-size:0.8em;}
.100 {font-weight:100;}
.hide {display:none;}
.post {margin:0px;}

#postinfotext{font-family:Arial; font-size: 10px; line-height:1.7em; font-weight:100; padding: 0px 0px 0px 0px; margin: 0px 0px 10px 0px;}
#postinfotext a { text-decoration:none;}
#postinfotext a:hover{ }

.commentheader {font-family:Arial; font-size: 14px; line-height:1.7em; font-weight:100; }
.comment { margin:0 0 10px; padding:2px 5px 0px 8px;}

.commenticon {font-family:Arial; font-size: 10px; line-height:1.7em; font-weight:100;}
.commenticon a{ text-decoration:none;}
.commenticon a:hover{ }

.commenttext { font-size: 12px; font-weight:100;line-height:1.7em; }
.commenttext p{ font-size: 12px; font-weight:100; line-height:1.7em; }

.comment p {line-height:1.7em; margin:0px; padding-bottom:2px;}
.gravatarside {float:right; width:48px; height:48px; margin:0px 5px 5px 5px;}
.wp-caption { text-align: center; padding-top: 4px; margin: 10px; -moz-border-radius: 3px; -khtml-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; clear:both;}
.wp-caption img { margin: 0; padding: 0; border: 0 none;}
.wp-caption-dd { font-size: 11px; line-height: 17px; padding: 0 4px 5px; margin: 0;}

.navigation {font-family:Arial; font-size: 11px; line-height:1.7em; font-weight:100;}
.navigation a { text-decoration:none;}
.navigation a:hover{ }
.prevlink{margin: 0px 6px 0px 0px;}
.nextlink{margin: 0px 0px 0px 6px;}

.clearfix:after { content: "."; display: block; height: 0; clear: both; visibility: hidden; }

.clearfix{display: inline-block;}

/* Hides from IE-mac \*/
* html .clearfix{height: 1%;}
.clearfix{display: block;}
/* End hide from IE-mac */ 

 /*printer styles*/
 @media print{
/*hide the left column when printing*/
#leftcol{display:none;}
#twocols, #maincol{width:100%; float:none;}
}

img#wpstats{display:none}

Any suggestions? Thanks in advance.