Mudar estrutura das paginas

body {
background:#E9E9E9;
color: #5D5D5D;
font-family: tahoma,arial,verdana,sans-serif;
font-size: 13px;
font-weight: normal;
margin-top: -1px;
padding-bottom: 10px;
}

.pun {
width: 1000px;
background: #fff;
border: 1px solid #878787;
-webkit-border-radius: 0 0 5px 5px;
-moz-border-radius: 0 0 5px 5px;
border-radius: 0 0 5px 5px;
box-shadow:0px 0px 8px #707070;
line-height: 1.6em;
padding: 12px;
}

.pun a:link {
color: #4E6A97;
text-decoration: none;
}

.pun a:visited {
color: #4E6A97;
text-decoration: none;
}

.pun a:hover, a:active {
color: #2F4C89;
text-decoration: underline;
}

#pun-intro {
background:#183B5B url(https://i.servimg.com/u/f41/14/81/40/78/bg-hea10.jpg) repeat top center;
border-bottom-color: #1B3759;
border-bottom-style: solid;
border-bottom-width: 0px;
min-height: 64px;
margin-left: -12px;
width: 998px;
margin-top: -12px;
}

.topictitle {
font-family: tahoma,arial,verdana,sans-serif;
font-size: 13px;
}

.entry-content {
font-family: Verdana,Helvetica,Arial,sans-serif;
font-size: 13px;
}

.quick_login {
background: #efefef;
color: #336699;
font-size: 11px;
border: 1px solid #CDDCED;
padding: 4px;
}

#pun-legend {
padding-bottom: 4px;
padding-top: 10px;
}

#pun-title {
display: none;
}

.post_field {
background:#fff none ;
color:#4d5153;
border:1px solid #bcb6ad;
padding:3px 3px 3px 10px;
margin-top: 2px;
text-align:left;
}

#pun-head #pun-navlinks {
background-color: #fff;
background-image: url("https://2img.net/h/oi53.tinypic.com/344tyir.png");
background-repeat: repeat-x;
color: #fff;
font-size: 13px;
height: 37px;
margin-bottom: 10px;
margin-left: -12px;
width: 996px;
}

#pun-navlinks ul {
list-style: none;
text-align: center;
}

#pun-navlinks li {
display: inline;
font-size: 1.15em;
}

#pun-navlinks li a {
margin: 0 0.1em 0 0;
}

#pun-navlinks a, #pun-navlinks a:visited {
color: #fff;
font-weight: normal;
text-decoration: none;
text-shadow: -1px -1px 1px rgba(0, 0, 0, 0.6);
padding-left: 10px;
line-height: 26px;
}

#pun-navlinks a:hover, #pun-navlinks a:active, #pun-navlinks a:focus {
text-decoration: none;
color: #fff;
text-shadow: -1px -1px 1px rgba(0, 0, 0, 0.6);
}

#pun-about {
background-color: #F3F3F3;
border: 1px solid #4E6A97;
border-bottom-color: #4E6A97;
border-bottom-style: solid;
border-bottom-width: 2px;
text-align: right;
line-height: 150%;
padding: 0.6em 1em;
}
#pun-about ul li a {
font-weight: normal;
}
#pun-about #qjump {
display: none;
}

.pun .paged-head, .pun .paged-foot {
border: 0px solid #dddddd;
background-color: #fff;
padding: 0.6em 1.3em 0.3em 1.3em;
}

#pun-visit, .main-box {
background-color: #F3F3F3;
border: 1px solid #4E6A97;
border-bottom-color: #4E6A97;
border-bottom-style: solid;
border-bottom-width: 2px;
}

.user-info span {
color: #000000;
font-size: 11px;
}
.pun .user .user-info {
color: #666666;
font-size: 11px;
line-height: 1.5;
}

.postmain blockquote {
padding: 0.5em 1em;
background-color: #EFEFEF;
border: 1px solid #81A2C4;
}

.postmain cite {
display: block;
margin: 0 0 1em 0;
font-weight: bold;
font-style: normal;
}

.codebox {
margin: 1em;
background-color: #F5F5F5;
border: 1px solid #0F5C8E;
}

.codebox dt {
padding: 0.25em;
border-bottom: 1px dashed #81A2C4;
}

.codebox dd {
margin: 0.5em;
padding: 0.5em;
background-color: #F5F5F5;
}

.main .main-head {
background-color: #4E6A97;
background-image: url("https://i.servimg.com/u/f41/14/81/40/78/gradie10.png");
background-position: left 50%;
background-repeat: repeat-x;
border: 1px solid #46618D;
border-top-left-radius: 5px;
border-top-right-radius: 5px;
margin-top: 15px;
padding-left: 8px;
}

.page-title h2, .page-title span {
font-weight: bold !important;
}

.main .main-head .page-title {
color: #fff;
font-size: 14px;
font-weight: bold !important;
font-family: tahoma,arial,verdana,sans-serif;
text-shadow: 0 -1px 0 #334562;
}
.pun .main-content {
border: 1px solid #4E6A97;
background-color: #fbfbfb;
}

.pun .post {
background-color: #FAFBFC;
border-bottom-color: #4E6A97;
border-bottom-style: solid;
border-bottom-width: 6px;
}

.main .main-foot {
padding: 0.7em 1.3em;
font-weight: normal;
color: #666;
background-color: transparent;
}

.pun .postmain {
background-color: #fbfbfb;
border-left: 1px solid #DADADA;
margin-left: 17em;
}

.pun .posthead {
padding: 0.5em 1.3em 0.5em 1em;
background-color: #D9D9D9;
background-image: url("https://i.servimg.com/u/f43/14/73/12/96/gradie10.png");
background-position: 0 50%;
background-repeat: repeat-x;
border-bottom-color: #D0D0D0;
border-bottom-style: solid;
border-bottom-width: 1px;
margin-top: -2px;
}

.postfoot {
border-top-color: #DADADA;
border-top-style: solid;
border-top-width: 1px;
clear: both;
margin-left: 0em;
padding-bottom: 0.5em;
padding-left: 1em;
padding-right: 1em;
padding-top: 0.5em;
text-align: right;
}

.frm-buttons {
border-top-color: #DDDDDD;
border-top-style: double;
border-top-width: 0px;
margin-bottom: 0;
margin-top: 0.5em;
padding-bottom: 0;
padding-left: 17.5em;
padding-right: 0;
padding-top: 0.7em;
}

#stats {
padding: 0.6em 1em;
line-height: 150%;
background-color: #F3F3F3;
border-bottom-color: #4E6A97;
border-bottom-style: solid;
border-bottom-width: 2px;
}

#tabs ul {
list-style-position: outside;
list-style-type: none;
padding: 0px;
white-space: nowrap;
}

#tabs ul li {
float: left;
margin: 0;
padding: 0 4px 0 0;
padding-bottom: 3px;
}

#tabs ul li.activetab a {
background-color: #fff;
border: #0F5C8E;
border-style: double;
border-width: 3px;
color: #666666;
text-decoration:none;
}

#tabs ul li.activetab a:hover {
background-color: #F5F5F5;
}

#tabs ul li a {
float: left;
padding: 0 1em;
background-color: #fff;
border: #0F5C8E;
border-style: double;
border-width: 3px;
font-size:1.1em;
font-weight:normal;
line-height: 2em;
text-decoration:none;
}

#tabs ul li a:hover {
background-color: #F5F5F5;
}

.pun .frm .frm-form table {
border: 1px solid #81A2C4;
padding-left: 4px;
}

.pun table.table th {
padding: 0.4em 0;
border-style: none;
border-color: #f4f4f4;
background-color: #f4f4f4;
color: #333333;
}

.pun table.table td {
padding: 0.6em 0 0.7em;
line-height: 130%;
background-color: #FFFFFF;
border-color: #B9C4CD;
border-width: 1px;
border-style: dashed none none none;
}
.pun .main table td.tc2, .pun .main table td.tc3 {
background-color: #FFFFFF;
}

.pun .posthead h2 strong {
display: block;
float: right;
font-size: 11px;
font-weight: normal;
margin-right: -6px;
margin-top: -1px;
padding-bottom: 2px;
padding-left: 8px;
padding-right: 8px;
padding-top: 2px;
}
.pun .posthead h2 strong {
background-color: #6F8F52;
color: #FFFFFF;
border-bottom-left-radius: 4px;
border-bottom-right-radius: 4px;
border-top-left-radius: 4px;
border-top-right-radius: 4px;
}

.user-contact a {
background-color: #4E6A97;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
border-radius: 4px;
color: #FFFFFF;
display: inline-block;
padding-bottom: 3px;
padding-left: 3px;
padding-right: 3px;
padding-top: 3px;
}

.trow_sep {
color: #FFFFFF;
font-family: tahoma,arial,verdana,sans-serif;
font-size: 14px;
font-weight: bold !important;
text-shadow: 0 -1px 0 #334562;
}

.pun .main-head a.exthelp, .pun .main-head a.exthelp:link, .pun .main-head a.exthelp:visited {
background-image: url("https://i.servimg.com/u/f43/14/73/12/96/help10.png");
background-position: left center;
background-repeat: no-repeat;
padding-left: 20px;
}

#forum_statistics {
background-color: #F3F3F3;
border-bottom-color: #4E6A97;
border-bottom-style: solid;
border-bottom-width: 4px;
padding-bottom: 10px;
padding-left: 10px;
padding-right: 10px;
padding-top: 10px;
}

#board-stats span {
background-color: #E2E2E2;
-webkit-border-radius: 2px;
-moz-border-radius: 2px;
border-radius: 2px;
color: #4A4A4A;
font-weight: bold;
padding-bottom: 2px;
padding-left: 6px;
padding-right: 6px;
padding-top: 2px;
}

#board-stats {
border-left-color: #DEDEDE;
border-left-style: solid;
border-left-width: 0px;
float: right;
padding-left: 20px;
width: 38%;
}
#board-stats dl {
margin-top: 10px;
}
#board-stats dt, #board-stats dd {
border-top-color: #DEDEDE;
border-top-style: solid;
border-top-width: 1px;
float: left;
font-size: 0.85em;
padding-bottom: 6px;
padding-left: 2px;
padding-right: 2px;
padding-top: 6px;
width: 45%;
}
#board-stats dt {
clear: both;
font-weight: bold;
}

#board-stats h2 {
clear: both;
font-weight: bold;
}

#chatbox_header.main-head {
background-color: #4E6A97;
background-image: url("https://i.servimg.com/u/f41/14/81/40/78/gradie10.png");
background-position: left 50%;
background-repeat: repeat-x;
color: #DEDFDF;
padding-bottom: 0;
padding-left: 1.3em;
padding-right: 1.3em;
padding-top: 0;
}

#onlinechat {
border-top: 0px dashed #ccc;
padding: 0.6em 1em;
background-color: #f4f4f4;
}

#chatbox_members {
position: absolute;
top: 30px;
bottom: 30px;
width: 180px;
overflow: auto;
border-right: 1px dashed #B9C4CD;
}

#chatbox_footer {
position: absolute;
bottom: 0;
left: 0;
right: 0;
border-top: 1px dashed #B9C4CD;
}

#onlinelist {
border-top: 0px dashed #ccc;
padding: 0.6em 1em;
background-color: #f4f4f4;
}

.vote {
float: right;
width:70px;
margin-left: 22px;
}

a[href="/u1"] {
text-shadow: 0px 0px 7px #00569C;
}
a[href="/u1"] {
background: url("https://i.servimg.com/u/f46/16/56/73/62/th/att11110.gif");