Построение структуры
В чем заключается структура? Это как скелет форума. Она определяет все основные параметры форума. Такие как текст, размер, положение и остальное. Возьмем стандартную структуру и рассмотрим её:

Код:

/*Стиль для форума разработан гл. администратором.*
A - SETUP
**************************************************************/

/* A1 Import the colour scheme
-------------------------------------------------------------*/

/* A1.1 */
@import url(style_cs.css);

/* A2 Deal with browser defaults and wonkiness
-------------------------------------------------------------*/

/* A2.1 */
html, body {margin: 0; padding: 0}

/* A2.2 */
.punbb * {
margin: 0
}

/* A2.3 */
.punbb ul, .punbb dl, .punbb li, .punbb dd, .punbb dt {
padding: 0;
list-style: none;
}

/* A2.4 */
.punbb img {
border:none
}

/* A2.5 */
.punbb .main table {
table-layout: fixed;
width: 100%;
}

/* A2.6 */
.checkfield input[type="checkbox"], .radiofield input[type="radio"] {margin: 0 0.3em;}

/* A2.7 */
p[class="checkfield"] *,
div[class="checkfield"] *,
fieldset[class="radiofield"] * {
height: 1.8em;
vertical-align: middle
}

/* A3 Text setup
-------------------------------------------------------------*/

/* A3.1 */
body {
font-size: 100.01%;
}

/* A3.2 */
.punbb {
font: normal 68.75% Comic Sans Ms;
}

/* 3.3 */
.punbb textarea, .punbb input, .punbb select, .punbb optgroup {
font: 1em Comic Sans Ms
}

/* A3.4 */
/* A3.4 */
.punbb h1, .punbb h2, .punbb h3 {
font-size: 1em;
font-weight: bold;
}

.punbb th {
font-size: 0.9em;
font-weight: bold;
letter-spacing: 1px;
}

/
/*.punbb .category th{
}
*/
.punbb h4, .punbb table {
font-size: 1em;
font-weight: normal;
}

/* A3.5 */
.punbb h1 span, .punbb h2 span {
font-size: 1.1em;
}

.punbb legend span {
font-size: 1.1em;
}

/* A3.6 */
.punbb pre {
font: 1.1em/140% monaco, "bitstream vera sans mono", "courier new", courier, monospace
}

/* A3.7 */
.punbb address, .punbb em {
font-style: normal
}

/* A3.8 */
.punbb .post-content em {
font-style: italic
}

/* A3.9 */
.punbb .post-content em.bbuline {
font-style: normal;
text-decoration: underline;
}

/* A3.10 */
.punbb a {
text-decoration: underline
}

/* A3.11 */
.punbb optgroup {
font-weight: bold;
}

/* A4 Float clearing and hidden items
-------------------------------------------------------------*/

/* A4.1 */
#pun:after,
.punbb .container:after,
.punbb .post-links ul:after,
.punbb .main div.inline:after,
.punbb .post-box:after,
.punbb .linksb:after {
clear: both;
content: ".";
display: block;
height: 0;
visibility: hidden;
overflow:hidden;
line-height: 0.0;
font-size: 0;
}

/* A4.2 */
.acchide,
#pun-index #pun-main h1,
#pun-navlinks h2,
#pun-pagelinks h2,
#pun-status h2,
#pun-ulinks h2,
.punbb .forum h2,
.punbb .multipage .topic h2,
.punbb dl.post-sig dt span,
.punbb p.crumbs strong,
.punbb .divider hr,
.punbb .required label em,
.punbb .formsubmit label,
.punbb .submitfield label,
.punbb .modmenu label,
#pun-userlist .main h2 {
font-size: 0;
height: 0;
width: 0;
line-height: 0.0;
position:absolute;
left: -9999px;
overflow: hidden
}

/* A5 Basic page layout and borders
-------------------------------------------------------------*/

/* A5.1 */
#pun {
margin: auto;
position: relative;
width: 1000px;
}

/* A5.2 */
.punbb {
float: left;
width: 100%;
height: auto;
}

/* A5.3 */
#pun-redirect, #pun-maint {
margin: 50px 20% 12px 20%;
width: auto;
float: none;
}

/* A5.4 */
.punbb .section, .punbb .main {
margin-bottom: 1em;
}

/* A5.5 */
.punbb .category, .punbb .post {
margin-top: 0.4em;
}

/* A5.6 */
.punbb #pun-category1, .punbb .toppost, .punbb .topicpost {
margin-top: 0;
}

/* 5.7 */
#pun-post .topic {
margin-top: 1em;
}

/* A5.8 */
.punbb .section, .punbb .forum, .punbb .formal, .punbb .modmenu, .punbb .info,
.punbb .category, .punbb .post {
border-style: dotted dotted dotted dotted;
border-width: 0px 0px 0px 0px
}

/* A5.9 */
.punbb .container {
border-style: solid;
border-width: 1px;
}

/* A5.10 */
#pun-main h1, .punbb .section h2, #pun-stats h2, #pun-debug h2 {
padding: 0.6em 1em;
border-style: solid solid none solid;
border-width: 1px 1px 0px 1px;
}

#pun-main h2 {
padding: 0.6em 1em;
border-style: none solid none solid;
border-width: 0px 1px 0px 1px;
}

/* A 5.11 E`e^i^i'e^e` i`a*i'? i'a`a^e`a~a`o"e`e` */
#pun-navlinks li {padding-left: 10px; padding-bottom: 0px}

/*************************************************************
B - MAIN CONTENT - GENERAL
**************************************************************/

/* B1 Parsed Content, Signatures and Scroll Boxes
-------------------------------------------------------------*/

/* B1.1 */
.punbb .post-content {
padding: 0;
margin: 0;
width: 50%;
overflow: hidden;
}

/* B1.2 */
.punbb .post-sig dt {
display: block;
border-top: 1px solid #888;
width: 250px;
margin: 5px 0;
}

/* B1.3 */
.punbb .post-content p {
margin: 0;
padding: 0 0 1em 0;
line-height: 150%;
}

/* B1.4 */
.punbb .post-content img {
vertical-align: text-bottom
}

/* B1.5 */
.punbb .post-content img.postimg {
vertical-align: middle;
}

/* B1.6 */
.punbb .post-content .blockcode, .punbb .post-content blockquote {
width: 100%;
overflow: hidden;
}

/* B1.7 */
.punbb .post-content .scrollbox {
width: 100%;
overflow: auto;
}

/* B1.8 */
.punbb .post-content .quote-box, .punbb .post-content .code-box {
margin: 0.4em 1.8em 1.4em 1.8em;
padding: 1em;
border-style: solid;
border-width: 1px;
}

/* B1.9 */
.punbb .quote-box cite, .punbb .code-box strong.legend {
display: block;
padding-bottom: 0.7em;
font-size: 1.1em;
font-weight: bold;
font-style: normal;
margin: 0;
}

/* B2 Information boxes
-------------------------------------------------------------*/

/* B2.1 */
.punbb .info-box {
padding: 1.1em 1.7em 1em 1.7em;
border-style: solid;
border-width: 1px;
margin: 0 0 1.1em 0;
}

/* B2.2 */
.punbb .info-box * {
padding: 0 0 0.7em 0;
}

/* B2.3 */
.punbb #pun-main .info-box .legend {
font-size: 1.1em;
font-weight: bold;
}

/* B3 Pagination and posting links
-------------------------------------------------------------*/

/* B3.1 */
.punbb .linkst {
float: left;
position: relative;
width: 100%;
font-size: 1.1em;
height: 0;
}

/* B3.2 */
.multipage {
margin-top: 3em;
}

/* B3.3 */
.linkst .pagelink {
position: absolute;
top: -4em;
left: 1em;
width: 24em;
}

/* B3.4 */
.linkst .postlink {
position: absolute;
top: -4em;
right: 1em;
width: 16em;
text-align: right;
font-weight: bold;
}

/* B3.5 */
.punbb .linksb {
text-align: right;
padding: 0.4em 1em 0.5em 1em;
font-size: 1.1em;
}

/* B3.6 */
.linksb .pagelink {
float: left;
width: 24em;
text-align: left;
}

/* B3.7 */
.linksb .postlink {
float: right;
width: 16em;
font-weight: bold
}

/* B3.8 */
.subscribelink {
clear:both;
padding-top: 0.3em;
padding-bottom: 0.5em;
}

/*************************************************************
C - MAIN CONTENT - SPECIFIC
**************************************************************/

/* C1 Form layout
-------------------------------------------------------------*/

/* C1.1 */
.punbb .formal .container {
padding: 1.7em 2.3em 1.1em 2.3em;
}

/* C1.2 */
.punbb .formsubmit {
padding: 0 0 0 1.7em;
margin: 1em 0 0 0;
}

/* C1.3 */
.punbb .formsubmit input, .punbb .formsubmit a, .punbb .formsubmit span {
margin: 0 0.6em 0 0
}

/* C1.4 */
.punbb fieldset {
border-style: solid;
border-width: 1px;
padding: 0 18px 0 18px;
margin: 0 0 1em 0
}

/* C1.5 */
.punbb fieldset legend {
padding: 0;
margin: 0 0 0 11px;
font-size: 1.1em
}

/* C1.6 */
.punbb fieldset legend span {
padding: 0 5px;
margin: 0 0 0 -15px;
}

/* C1.7 */
.punbb fieldset fieldset {
border-style: none;
margin: 0;
padding: 0 0 8px 0
}

/* C1.8 */
.punbb .fs-box {
padding: 1em 0 0.8em 0;
}

/* C1.9 */
.punbb .fs-box p, .punbb .fs-box fieldset {
padding: 0 0 0.8em 0
}

/* C1.10 */
.punbb .inline .inputfield, .punbb .inline .selectfield, .punbb .inline .passfield {
float: left;
margin-right: 1em;
}

/* C1.11 */
.punbb .inline .infofield {
clear:both
}

/* C1.12 */
.punbb .datafield br {
display: none
}

/* C1.13 */
.punbb .required label, .punbb .datafield span.input {
font-weight: bold
}

/* C1.14 */
.punbb .datafield span.input a {
font-weight: normal;
}

/* C1.15 */
.punbb .areafield span.input, .punbb p.longinput span.input {
display: block;
padding: 0 4em 0 0;
height: 100%; /* For IE */
}

/* C1.16 */
.punbb textarea, .punbb .longinput input {
width: 64%;
margin: 0;
}

/* C1.17 */
.punbb .hashelp {
position: relative;
}

/* C1.18 */
.punbb .helplinks {
display: block;
position: absolute;
top: 1em;
right: 0;
font-weight: normal;
width: 36%;
}

/* c1.19 */
.punbb #profile .helplinks {
top: 1.5em;
}

/* C1.20 */
.punbb .helplinks span {
display: block;
padding-bottom: 0.2em;
}

.punbb .helplinks span INPUT {
margin: 0px 2px 2px 0px;
}

/* C1.21 */
#pun-post .formal .info-box li {
padding-left: 4px;
list-style-type: square;
list-style-position: inside;
line-height: 1.5;
margin: 0;
}

/* C2 Table layout
-------------------------------------------------------------*/

/* C2.1 */
.punbb .main .tcl {
overflow: hidden;
text-align: left;
width: 50%;
}

/* C2.2 */
.punbb .main .tc2, .punbb .main .tc3, .punbb .main .tcmod {
text-align: center;
width: 10%;
}

/* C2.3 */
.punbb .main .tcr {
overflow: hidden;
text-align: left;
width: 30%;
}

/* C2.4 */
#pun-userlist .main .tcl,
#pun-searchtopics .main .tcl,
#pun-modviewforum .main .tcl {
width: 40%
}

/* C2.5 */
#pun-userlist .main .tc2,
#pun-searchtopics .main .tc2 {
text-align: left;
width: 20%;
}

/* C2.6 */
#pun-debug table .tcl {
width: 15%;
white-space:normal;
}

/* C2.7 */
#pun-debug .tcr {
width: 90%;
white-space: normal;
}

/* C2.8 */
#pun-index .tcl h3 {
font-size: 1.2em;
font-weight: bold;
}

/* C2.9 */
.punbb td span.youposted {
font-weight: bold;
margin-left: -1em;
position: absolute;
}

/* C2.10 */
.punbb td .modlist {
display: block;
padding-top: 0.3em
}

/* C2.11 */
.punbb .main td {
border-style: solid none none solid;
border-width: 1px 0 0 1px;
padding: 0.8em 1em;
}

/* C2.12 */
.punbb .main th {
border: none;
padding: 4px 1em 6px 1em;
}

/* C2.13 */
.punbb .main .tcl {
border-left-style: none;
border-left-width: 0;
}

* html .tclcon {height: 1px}

/* C2.14 */
.punbb td div.tclcon {
margin-left: 30px;
}

/* C2.15 */
.punbb div.icon {
float: left;
display: block;
height: 160px;
width: 160px;
margin-left: 3px;
margin-right: 4px;
}

/* C3 Topics
-------------------------------------------------------------*/

/* C3.1 */
.punbb .post .container {
border-style: none solid solid solid;
border-width: 1px;
margin-top: -1px;
padding-bottom: 1px;
}

/* C3.2 */
.punbb .post h3 {
border-style: solid solid none solid;
border-width: 1px;
}

/* C3.3 */
.punbb .post h3 span {
border-left: 1px solid #1A1A1A;
padding: 0.5em 1em;
display: block;
margin-left: 19em;
}

/* C3.4 */
.punbb .post h3 strong {
float: right;
width: 5em;
text-align: right;
font-weight: normal;
}

/* C3.5 */
.punbb .post .post-author {
float: left;
width: 19em;
margin-top: -1.8em;
overflow: hidden;
}

.punbb .post li.pa-author {
padding-bottom: 1.2em;
}

/* C3.6 */
.punbb .post .post-author ul, .punbb .post .post-author p {
padding: 1em 1em 1em 1em;
line-height: 140%;
}

/* C3.7 */
.pa-author {
font-size: 1.1em;
font-weight: bold;
}

/* C3.8 */
.pa-author a {
text-decoration: underline
}

/* C3.9 */
li.pa-title {
padding-bottom: 0em;
}

li.pa-online {
line-height: 0.8em;
border-left-style: solid;
border-left-width: 0.7em;
padding-left: 0.4em;
margin-top: 0.7em;
}

/* C3.11 */
.punbb .post-body {
margin-left: 19em;
border-left-style: solid;
border-left-width: 1px;
padding: 0 0 1px 0;
}

/* C3.12 */
.punbb .post-box {
padding: 1em;
}

/*C3.13 */
.punbb fieldset .post-box {
margin-bottom: 0.8em
}

/* C3.14 */
.punbb .post-links {
margin-left: 19em;
border-left-style: solid;
border-left-width: 1px;
}

/* C3.15 */
.punbb .post-links ul {
padding: 0 1em 0 0;
height: 2em;
line-height: 2em;
margin-left: -19em;
border-top-style: dashed;
border-top-width: 1px;
background: transparent;
text-align: right;
}

/* C3.16 */
.punbb .post-links li {
display: inline;
padding-left: 1em;
}

/* C3.17 */
.pl-email, .pl-website {
float: left;
}

/* C3.18 */
.punbb .clearer {
clear: both;
height: 0;
font-size: 0;
}

/* C4 Moderator menu
-------------------------------------------------------------*/

/* C4.1 */
.punbb .modmenu .container {
margin-top: 4px;
padding: 0.5em 1em;
text-align: right;
}

/* C4.2 */
.punbb .modmenu strong, .punbb .modmenu a {
height: 1.8em;
line-height: 1.8em;
}

/* C4.3 */
.punbb .modmenu .container strong {
float: left;
}

/* C4.4 */
.punbb .modmenu input {
margin-left: 1em;
}

/* C5 Message boxes
-------------------------------------------------------------*/

/* C5.1 */
.punbb .info .container {
padding: 0.8em 1em
}

/* C5.2 */
.punbb .info .container .backlink {
padding-top: 0.8em;
}

/* C6 Profile
-------------------------------------------------------------*/

/* C6.1 */
#profile .container {
padding-left: 18.6em;
}

/* C6.2 */
#profilenav {
float: left;
width: 14em;
margin-left: -16.3em;
display: inline;
}

/* C6.3 */
#profilenav li {
padding-bottom: 0.8em;
font-weight: bold;
}

/* C6.4 */
#viewprofile ul, #profilenav ul {
border-style: solid;
border-width: 1px;
padding: 1.5em 18px 0.8em 18px;
margin: 0 0 1em 0;
}

/* C6.5 */
#viewprofile h2, #profilenav h2 {
background: transparent;
border: none;
padding: 0 0 0 0;
margin: 0 14px -0.6em 14px;
}

/* C6.6 */
#viewprofile h2 span, #profilenav h2 span {
padding: 0 5px;
position: relative;
}

/* C6.7 */
#viewprofile li, #setmods dl {
padding: 0 0 0 16em;
margin-bottom: 0.2em;
}

/* C6.8 */
#viewprofile li span {
float: left;
width: 14em;
margin-left: -16em;
padding: 0.5em 1em;
font-weight: bold;
}

/*C6.9 */
#setmods dt {
float: left;
width: 14em;
margin-left: -16em;
padding: 0.8em 1em;
font-weight: bold;
display: inline;
}

/* C6.10 */
#viewprofile li strong, #viewprofile li div, #setmods dd {
display: block;
padding: 0.5em 1em;
font-weight: normal;
}

/* C6.11 */
.punbb img.avatardemo {
float: right;
margin: 0 0 0.8em 1.8em
}

/* C7 User list
-------------------------------------------------------------*/

/* C7.1 */
#pun-userlist .formal, #pun-userlist .formal .container {
border-bottom: none;
margin-bottom: 0;
}

/* C7.2 */
#pun-userlist .usertable .container {
padding: 0 2.3em 2.3em 2.3em;
border-top: none;
}

/* C7.3 */
#pun-userlist .usertable table {
border-style: solid;
border-width: 1px;
}

/*************************************************************
D - PUNBB SECTIONS OTHER THAN MAIN CONTENT
**************************************************************/

/* D1 Logo and description
-------------------------------------------------------------*/

/* D1.1 */
#pun-title {
margin: 0;
margin-top: 0px;
border-style: double;
border: none;
margin-bottom: 0px;

}

/* D1.2 */
#pun-title h1 {
display : block;
height: 254px;
margin-bottom: -1px;
}

/* D1.3 */
#pun-title .container {
border-style: none ;
padding: 0.2em 1em 0.8em 1em;
}

/* D1.4 */
#pun-title h1 span {
display: none;
}

#pun-title TABLE {
border: none;
height: 254px;
width: 100%; margin-bottom: 0px; margin-top: 0px;
}

#pun-title TD.title-logo-tdl {
border: none;
width: 100%; height: 254px;
}

#pun-title TD.title-logo-tdr {
border: none;
width: 468px;
vertical-align: top;
padding-right: 120px;
padding-top: 180px;

}

/* D2 Page navigation
-------------------------------------------------------------*/

/* D2.1 */
#pun-pagelinks {
position: absolute;
top: -15px;
left: 0;
margin: 0;
border: none;
padding: 0;
width: 100%;
}

/* D2.2 */
#pun-pagelinks .container {
background: transparent;
border: none;
padding: 0
}

/* D2.3 */
#pun-pagelinks .container li {
display: inline
}

/* D2.4 */
#pun-pagelinks li a, #pun-pagelinks a:link, #pun-pagelinks a:hover {
height: 2em;
line-height: 2em;
padding: 0;
font-size: 1.2em;
margin-left: -9999px;
display: block;
float:left;
width: 100%;
}

/* D2.5 */
#pun-pagelinks a:active, #pun-pagelinks a:focus {
position:relative;
margin: 0;
}

#pun-pagelinks li a span {
display:block;
margin: 0 1em
}

/* D3 Forum navigation
-------------------------------------------------------------*/

/* D3.1 */
#pun-navlinks, #pun-navlinks .container {
border-style: none;
border-width: 0;
margin: 0;
}

/* D3.2 */
#pun-navlinks .container {
padding: 0.7em 1em;
}

/* D.3 */
#pun-navlinks li {
display: inline;
padding-right: 1em;
}

/* D3.4 */
#pun-navlinks li a {
font-size: 1.1em;
}

/* D4 User links
-------------------------------------------------------------*/

/* D4.1 */
#pun-ulinks {
margin-top: 0;
}

/* D4.2 */
#pun-ulinks .container {
border-top: none;
padding: 0.7em 1em;
}

/* D4.3 */
#pun-ulinks li, #pun-ulinks li a {
display: inline;
border-left-style: solid;
border-left-width: 1px;
white-space: nowrap;
}

/* D4.4 */
#pun-ulinks li a {
padding: 0 0.3em 0 0.6em
}

/* D4.5 */
#pun-ulinks li.item1, #pun-ulinks li.item1 a {
border-left-style: none;
border-left-width: 0;
padding-left: 0
}

/* D5 Welcome box and Top Breadcrumbs
-------------------------------------------------------------*/

/* D5.1 */
#pun-status, #pun-status .container {
border-bottom: none;
margin-bottom: 0;
}

/* D5.2 */
#pun-status .container {
padding: 0.8em 1em 1em 1em;
}

/* D5.3 */
#pun-status span {
white-space: nowrap;
margin-right: 0.5em;
}

/* D5.4 */
#pun-crumbs1 {
font-weight: bold;
overflow: hidden;
margin-top: 0;
}

/* D5.5 */
#pun-crumbs1 p.container {
border-top: none;
padding: 1em 1em 0.8em 1em;
font-size: 1.1em;
}

/* D5.6 */
#pun-break1 {
margin: 0 1em;
border-style: solid none;
border-width: 1px 0;
height: 0;
margin: -2px 1em;
position: relative;
z-index: 1;
}

/* D6 Announcement
-------------------------------------------------------------*/

/* D6.1 */
#pun-announcement h2 {
padding: 0;
margin: 0 1em -3.5em 1em;
border-style: none none solid none;
border-width: 0 0 1px 0;
position: relative;
font-weight: bold;
}

/* D6.2 */
#pun-announcement h2 span {
display: block;
padding: 1em 0 0.8em 0;
border-bottom-style: solid;
border-bottom-width: 1px;
}

/* D6.3 */
#pun-announcement .container {
padding: 4.3em 1em 1em 1em;
}

/* D7 Statistics
-------------------------------------------------------------*/

/* D7.1 */
#pun-stats .container {
padding: 0.8em 1em
}

/* D7.2 */
#pun-stats li.item1, #pun-stats li.item2 {
float: left;
clear: both;
line-height: 150%;
}

/* D7.3 */
#pun-stats li.item3, #pun-stats li.item4 {
text-align: right;
line-height: 150%;
}

/* D7.4 */
li#onlinelist {
margin-top: 1em;
border-top-style: solid;
border-top-width: 1px;
float: left;
width: 100%;
line-height: 130%;
}

/* D7.5 */
li#onlinelist div {
border-top-style: solid;
border-top-width: 1px;
padding: 0.7em 0 0 0;
}

/* D8 Quick Jump - About - Bottom Breadcrumbs
-------------------------------------------------------------*/

/* D8.1 */
#pun-qjump {
margin: 0;
border: none;
width: 50%;
position: relative;
float: left;
}

/* D8.2 */
#pun-qjump .container {
border: none;
background: transparent;
padding: 0.8em 1em;
}

/* D8.3 */
#pun-about {
margin-top: 0;
}

/* D8.4 */
#pun-about .container {
border-top-style: none;
text-align: right;
line-height: 150%;
padding: 0.8em 1em;
}

/* D8.5 */
#pun-about p span {
display:block;
padding-left: 50%;
}

/* D8.6 */
#pun-crumbs2 {
font-weight: bold;
overflow: hidden;
margin-bottom: 0;
border-bottom: none;
}

/* D8.7 */
#pun-crumbs2 .container {
border-bottom: none;
padding: 0.8em 1em;
font-size: 1.1em;
}

/* D8.8 */
#pun-break4 {
margin: -2px 1em;
border-style: solid none;
border-width: 1px 0;
position: relative;
height: 0;
z-index: 1;
}

/* D8.9 */
div.punbb-admin #pun-about .container {
border-top-style: solid;
border-top-width: 1px;
}

/* D9 Help file
-------------------------------------------------------------*/

/* D9.1 */
#pun-help .formal .info-box h3.legend {
border-bottom-style: solid;
border-bottom-width: 1px;
padding-bottom: 0;
margin-bottom: 0.8em;
}

/* D9.2 */
#pun-help .formal .info-box h3.legend span {
padding-bottom: 0.6em;
display: block;
border-bottom-style: solid;
border-bottom-width: 1px;
font-size: 1.1em;
}

/* D9.3 */
#pun-help .formal p, #pun-help .formal dd {
margin-bottom: 1em
}

/* D9.4 */
#pun-help .formal ul, #pun-help .formal dl {
padding: 0 0 0 1em
}

/* D9.5 */
#pun-help .formal li {
padding: 0;
line-height: 130%
}

/* D9.6 */
#pun-help .formal li * {
vertical-align: text-top
}

/* D9.7 */
#pun-help .formal dt span {
font: 1.4em/120% monaco, "bitstream vera sans mono", "courier new", courier, monospace
}

/* D9.8 */
#pun-help .formal .parsedmsg, #pun-help .formal .parsedmsg .incode {
padding-bottom: 0;
}

Код:

/* A2 Deal with browser defaults and wonkiness
-------------------------------------------------------------*/

Рассмотрим данный раздел. Сегодня мы рассмотрим ширину и основные параметры структуры.

Код:

/* A5.2 */
.punbb {
float: left;
width: 100%;
height: auto;
}

Здесь 4 строка. Рассмотрим именно её. width: 100%
И так, это ширина нашего форума. Вы можете поэкспериментировать с шириной.

Код:

/* A3 Text setup
-------------------------------------------------------------*/

В этом разделе настройки с текстом. Рассмотрим поближе еще пару пунктов:

Код:

/* A3.1 */
body {
font-size: 100.01%;
}

/* A3.2 */
.punbb {
font: normal 68.75% Comic Sans Ms;
}

/* 3.3 */
.punbb textarea, .punbb input, .punbb select, .punbb optgroup {
font: 1em Comic Sans Ms
}

/* A3.4 */
/* A3.4 */
.punbb h1, .punbb h2, .punbb h3 {
font-size: 1em;
font-weight: bold;
}

.punbb th {
font-size: 0.9em;
font-weight: bold;
letter-spacing: 1px;
}

/
/*.punbb .category th{
}
*/
.punbb h4, .punbb table {
font-size: 1em;
font-weight: normal;
}

/* A3.5 */
.punbb h1 span, .punbb h2 span {
font-size: 1.1em;
}

.punbb legend span {
font-size: 1.1em;
}

/* A3.6 */
.punbb pre {
font: 1.1em/140% monaco, "bitstream vera sans mono", "courier new", courier, monospace
}

/* A3.7 */
.punbb address, .punbb em {
font-style: normal
}

/* A3.8 */
.punbb .post-content em {
font-style: italic
}

/* A3.9 */
.punbb .post-content em.bbuline {
font-style: normal;
text-decoration: underline;
}

/* A3.10 */
.punbb a {
text-decoration: underline
}

/* A3.11 */
.punbb optgroup {
font-weight: bold;
}

Код:

/* A3.2 */
.punbb {
font: normal 68.75% Comic Sans Ms;
}

/* 3.3 */
.punbb textarea, .punbb input, .punbb select, .punbb optgroup {
font: 1em Comic Sans Ms
}

- Эти разделы- непосредственные настройки текста. Тут стоит шрифт Comic Sans Ms
Его можно заменить. А так же тут есть настройки величины самого этого текста:

Код:

/* A3.2 */
.punbb {
font: normal 68.75% Comic Sans Ms;
}

Вот нас интересует 3 строка. И цифры в ней. Можно их сменить, на большие или меньшие. И в зависимости от этого будет сменятся размер текста

Вот это и основные понятия в структуре. Ширина и текст. Далее мы разберем более мелкие детали.