Modifier les couleurs d'un forum

Ben il te faut apprendre le CSS, pour le CSS j'utilise le siteduzero pour comprendre un peu, sinon pour avoir des signification precise il y a allhtml.com

Le site du zero m'a tout l'air out of date ou en refrabication..

comment changer la couleur d'un forum phpbb?
hum je ne suis pas sur de comprendre... tu veux dire que c'est toi meme qui a codé le forum ou tu te le fais directement hebergé?

si tu te le fais directement hebergé, il suffit d'aller l'administration
si tu la codé toi meme (gg ^^) et que c'est bel et bien un forum phpbb, je ne pense pas que l'utilisation d'un fichier css doit etre requise....

mais attends la reouverture du site du zero si tu veux vérifier

C'est un forum que j'héberge, mais il y a un fichier .css où il est possible de modifier les couleurs du forum... Dans l'admin il est impossible de modifier les couleurs d'un thème rajouté.

J'aimerais juste savoir à quoi correspond les différentes parties de cette feuille css
La voici, quelqu'un de très sympathique pourrait il me le dire?
Enfin que les choses essentielles bien sûr, les titres surtout

/* General page style. The scroll bar colours only visible in IE5.5+ */
 
 
 
body {
	background-color: #DFE7E2;
 
	scrollbar-face-color: #Dee3e7;
 
	scrollbar-highlight-color: #FFFFFF;
 
	scrollbar-shadow-color: #DEE3E7;
 
	scrollbar-3dlight-color: #D1D7DC;
 
	scrollbar-arrow-color:  #83A38E;
 
	scrollbar-track-color: #f1f5f1;
 
	scrollbar-darkshadow-color: #98AAB1;
}
 
/* General font families for common tags */
 
 
font,th,td,p { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; }
 
a:link,a:active,a:visited { color : #006699; }
 
a:hover		{ text-decoration: underline; color : #5C9E65; }
 
hr	{ height: 0px; border: solid #004080 0px; border-top-width: 1px;}
 
/* This is the border line & background colour round the entire page */
 
.bodyline	{ background-color: #FFFFFF; border: 1px #5C9E65 solid; }
.upline	
{ background-color: #FFFFFF; border: 0px; 
 
background-image: url(images/bgpic1.jpg);
		}
 
/* This is the outline round the main forum tables */
 
.forumline	{ background-color: #FFFFFF; border: 2px #F1F5F1 solid; }
 
.playline	{ background-color: #FFFFFF; border: 1px #F1F5F1 solid; }
 
/* Main table cell colours and backgrounds */
 
 
td.row1	{ background-color: #ECF0EC; }
 
td.row2	{ background-color: #F1F5F1; }
 
td.row3	{ background-color: #ECF0EC; }
/*
  This is for the table cell above the Topics, Post & Last posts on the index.php page
 
  By default this is the fading out gradiated silver background.
 
 However, you could replace this with a bitmap specific for each forum
 
*/
 
td.rowpic {
		background-color: #FFFFFF;
}
 
 
 
/* Header cells - the blue and silver gradient backgrounds */
 
th	{
 
	color: #006690; font-size: 11px; font-weight : bold;
 
	background-color: #F1F5F1; height: 19px;
}
 
 
 
td.cat,td.catHead,td.catSides,td.catLeft,td.catRight,td.catBottom {
 
	background-image: url(images/cellpic5.jpg);
 
	background-color:#D4DED8; border: #FFFFFF; border-style: solid; height: 20px;
}
/*
 
	Setting additional nice inner borders for the main table cells.
 
	The names indicate which sides the border will be on.
 
	Don't worry if you don't understand this, just ignore it :-)
 
 
*/
 
	td.cat,td.catHead,td.catBottom {
 
	height: 20px;
 
	border-width: 0px 0px 0px 0px;
}
 
 
	th.thHead,th.thSides,th.thTop,th.thLeft,th.thRight,th.thBottom,th.thCornerL,th.thCornerR {
 
	font-weight: bold; 
	border: #FFFFFF; 
	border-style: solid; height: 20px; }
 
 
td.row3Right,td.spaceRow {
 
 
	background-color: #F1F5F1; 
	border: #FFFFFF; 
	border-style: solid; }
 
 
 
th.thHead,td.catHead { font-size: 12px; border-width: 1px 1px 0px 1px; }
 
th.thSides,td.catSides,td.spaceRow	 { border-width: 0px 1px 0px 1px; }
 
th.thRight,td.catRight,td.row3Right	 { border-width: 0px 1px 0px 0px; }
 
th.thLeft,td.catLeft	  { border-width: 0px 0px 0px 1px; }
 
th.thBottom,td.catBottom  { border-width: 0px 1px 1px 1px; }
 
th.thTop	 { border-width: 1px 0px 0px 0px; }
th.thCornerL { border-width: 1px 0px 0px 1px; }
 
th.thCornerR { border-width: 1px 1px 0px 0px; }
 
 
/* The largest text used in the index page title and toptic title etc. 
 
*/
.maintitle,h1,h2	{
 
font-weight: bold; font-size: 14px; font-family: Verdana, Arial, Helvetica, sans-serif;
 
text-decoration: none; line-height : 120%; color : #000000;
}
 
 
/* General text */
.gen 
{ font-size : 12px; }
.genmed { font-size : 11px; }
.gensmall 
{ font-size : 10px; }
.gen,.genmed,.gensmall 
{ color : #000000; }
a.gen,a.genmed,a.gensmall 
{ color: #88A28B; text-decoration: none; }
a.gen:hover,a.genmed:hover,a.gensmall:hover	
{ color: #83A38E; text-decoration: underline; }
 
 
/* The register, login, search etc links at the top of the page 
 
 
*/
.mainmenu		
 
{ font-size : 11px; color : #000000 }
a.mainmenu		
{ text-decoration: none; color : #A1C7A4; }
a.mainmenu:hover  
{ text-decoration: underline; color : #99C1A7; }
 
 
/* Forum category titles */
.cattitle		
{ font-weight: bold; font-size: 12px ; letter-spacing: 1px; color : #639374}
a.cattitle		
{ text-decoration: none; color : #91B79F; }
a.cattitle:hover  { text-decoration: underline; }
 
/* Forum title: Text and link to the forums used in: index.php 
 
 
*/
.forumlink		
 
{ font-weight: bold; font-size: 12px; color : #87B197; }
a.forumlink 	
{ text-decoration: none; color : #87B197; }
a.forumlink:hover 
{ text-decoration: underline; color : #91B79F; }
 
 
/* Used for the navigation text, (Page 1,2,3 etc) and the navigation bar when in a forum 
 
*/
.nav			
 
{ font-weight: bold; font-size: 11px; color : #000000;}
a.nav			
{ text-decoration: none; color : #99C1A7; }
a.nav:hover		
{ text-decoration: underline; }
 
 
/* titles for the topics: could specify viewed link colour too 
 
*/
.topictitle			
{ font-weight: bold; font-size: 11px; color : #000000; }
a.topictitle:link   
{ text-decoration: none; color : #94C2A4; }
a.topictitle:visited 
{ text-decoration: none; color : #83B595; }
a.topictitle:hover	
{ text-decoration: underline; color : #AE0000; }
 
 
/* Name of poster in viewmsg.php and viewtopic.php and other places 
 
 
*/
.name			
 
{ font-size : 11px; color : #000000;}
 
 
 
/* Location, number of posts, post date etc */
.postdetails		
 
{ font-size : 10px; color : #000000; }
 
 
/* The content of the posts (body of text) 
 
*/
.postbody { font-size : 12px;}
a.postlink:link	
{ text-decoration: none; color : #8CA890 }
a.postlink:visited 
{ text-decoration: none; color : #90B896; }
a.postlink:hover 
{ text-decoration: underline; color : #A3C1A7 }
 
 
/* Quote & Code blocks 
 
 
*/
.code {
	font-family: Courier, 'Courier New', sans-serif; font-size: 11px; color: #C8DDCB;
 
background-color: #FFFFFF; border: #C8DDCB; border-style: solid;
 
border-left-width: 1px; 
border-top-width: 1px; border-right-width: 1px; 
border-bottom-width: 1px
}
 
.quote {
 
 
font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 11px; color: #444444; line-height: 125%;
 
background-color: #FFFFFF; border: #C8DDCB; border-style: solid;
 
border-left-width: 1px; border-top-width: 1px; border-right-width: 1px; 
border-bottom-width: 1px
}
 
 
/* Copyright and bottom info */
.copyright		
 
{ font-size: 10px; font-family: Verdana, Arial, Helvetica, sans-serif; color: #444444; letter-spacing: -1px;}
a.copyright		
{ color: #444444; text-decoration: none;}
 
a.copyright:hover { color: #000000; text-decoration: underline;}
 
/* Form elements */
input,textarea, select 
 
{
	font: normal 11px Verdana, Arial, Helvetica, sans-serif;
 
border-color: #000000;
	border-width: 1px;
 
background-color : #FFFFFF;
}
 
/* The text input fields background colour 
 
*/
input.post, textarea.post, select 
{
	background-color : #FFFFFF;
 
border-width: 1px;
 
border-color : #000000;
}
 
input 
{ text-indent : 2px;
	background-color : #F1F5F1;
	}
 
/* The buttons used for bbCode styling in message post */
input.button 
{
	background-color : #F1F5F1;
 
border-color: #F1F5F1;
	border-width: 0px;
 
font-size: 11px; font-family: Verdana, Arial, Helvetica, sans-serif;
}
 
/* The main submit button option 
 
 
*/
input.mainoption 
{
	background-color : #F1F5F1;
 
border-color: #000000;
	border-width: 1px;
 
font-weight : bold;
}
 
/* None-bold submit button */
input.liteoption {
 
background-color : #FFFFFF;
	border-color: #000000;
	border-width: 1px;
 
font-weight : normal;
}
 
/* This is the line in the posting page which shows the rollover
  help line. 
This is actually a text box, but if set to be the same
  colour as the background no one will know ;)
*/
.helpline 
{ background-color: #BBD6BE; border-style: none; }
 
/* Import the fancy styles for IE only (NS4.x doesn't use the @import function) */
@import url("formIE.css");

Merci!