Code:

[color=#000000][font=verdana]Chatbox//var params = '?archives=0';var smilies_sid = '';//]]>* {margin: 0px;padding: 0;}html, body {overflow: hidden;}body {background-color: #efefef;}
<div id="chatbox_header"><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td class="row1" height="30" nowrap="nowrap" valign="top"><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr>[td height="30" nowrap="nowrap" align="center" valign="middle" width="80px"][url=http://cntt-k3.biz/javascript:void(0)][/url][/td]<td style="" height="25" nowrap="nowrap"><table border="0" width="100%"><tr>[td style="color:#000000;padding-top:7px; padding-left:10px; width:17%" valign="top"][size=9][color=red][b]Notice:[/b][/color][/size][/td]<td style="color:#000000;padding-left:1px;">

 
 v_content=[['','[color=red][b]Các bài viết không dấu  post sai sẽ bị xóa ngay lập tức[/b][/color]','_parent'], ['','[color=red][b]Nghiêm cấm nói tục, chửi bậy, đưa link bậy bạ lên Shoutbox![/b][/color]','_parent'], ['','[color=red][b]Phải sử dụng tiếng việt có dấu toàn diễn đàn[/b][/color]','_parent'],['','[color=red][b]Cấm đả kích các thành viên khác trên Shoutbox![/b][/color]','_parent']]; // === 1 === FONT, COLORS, EXTRAS...
v_font='verdana';
v_fontSize='12px';
v_fontSizeNS4='12px';
v_fontWeight='normal';
v_fontColor='#000000';
v_textDecoration='none';
v_fontColorHover='#333333';//      | won't work
v_textDecorationHover='none';//  | in Netscape4
v_bgColor='transparent';
// set [='transparent'] for transparent
// set [='url(image_source)'] for image
v_top=-13
v_left=0;//  | defining
v_width=400;//  | the box
v_height=14;//  |
v_paddingTop=-10;
v_paddingLeft=0;
v_position='relative';// absolute/relative
v_timeout=4000;//1000 = 1 second
v_slideSpeed=1;
v_slideDirection=0;//0=down-up;1=up-down
v_pauseOnMouseOver=true;
// v2.2  new below
v_slideStep=3;//pixels
v_textAlign='center';// left/center/right
v_textVAlign='middle';// top/middle/bottom - won't work in Netscape4
 
// === 2 === THE CONTENT - ['href','text','target']
// Use '' for href to have no link item
v_content = v_content;
// ===
v_ua=navigator.userAgent;v_nS4=document.layers?1:0;v_iE=document.all&&!window.innerWidth&&v_ua.indexOf("MSIE")!=-1?1:0;v_oP=v_ua.indexOf("Opera")!=-1&&document.clear?1:0;v_oP7=v_oP&&document.appendChild?1:0;v_oP4=v_ua.indexOf("Opera")!=-1&&!document.clear;v_kN=v_ua.indexOf("Konqueror")!=-1&&parseFloat(v_ua.substring(v_ua.indexOf("Konqueror/") 10))1)v_TIM=setTimeout("v_canPause=0;v_slide()",v_timeout);return}o.top=(parseInt(o.top)-v_slideStep*v_d)*v_d>v_paddingTop*v_d?parseInt(o.top)-v_slideStep*v_d px:v_paddingTop px;if(v_oP&&o.visibility.toLowerCase()!="visible")o.visibility="visible";setTimeout("v_start()",v_slideSpeed)};function v_slide(){var o,o2,px;o=v_getOS("v_" v_cur);o2=v_getOS("v_" (v_cur
 
 
input,textarea,select,#text_editor_iframe,textarea.inputbox {
border:1px solid #A9B8C2 !important;
-moz-border-radius:3px;
border-radius:3px;
font-size:11px;
font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;
padding:1px 4px;
}
 
.button:hover,.mainoption:hover,input[type=submit]:hover,input[type=button]:hover,input[type=reset]:hover {
border:1px solid #00C6D4 !important;
color:#00C6D4;
background-position:0 100%;
}
 
.button,.mainoption,input[type=submit],input[type=button],input[type=reset] {
background:#F4F5F4 url(http://i1209.photobucket.com/albums/cc400/dothinh1105/CSS/tabbg110.png);
padding:2px 5px;
}
 
.post-options {
text-align:right;
}
 
.post-options img {
cursor:pointer;
vertical-align:middle;
}
 
input {
text-indent:2px;
}
 
input.mainoption {
background-color:#fafafa;
font-weight:700;
}
 
input.liteoption {
background-color:#fafafa;
font-weight:400;
}
 
.helpline {
background-color:#dee3e7;
margin-left:210px;
border-style:none;
}
 
button.button2,input.button2 {
font-size:0.7em;
border:1px solid #BCBCBC;
width:auto !important;
font-family:Tahoma,Verdana,Arial,Helvetica,sans-serif;
color:#000;
background-repeat:repeat-x;
background-color:#FAFAFA;
background-image:url('http://i1209.photobucket.com/albums/cc400/dothinh1105/CSS/bg_but10.gif');
background-position:top;
overflow:visible;
vertical-align:middle;
padding:1px 0;
}
 
button.button2:hover,input.button2:hover {
border:1px solid #dd6900;
color:#dd6900;
background-position:0 100%;
}
 
 
/* Chatbox-------------------------------------------------------------*/
#frame_chatbox {
  border: none !important;
  }
body.chatbox {
  padding: 1px 1px 1px 1px;
  margin: 0;
  background-color: #fff;
min-width: 550px !important; 
font: nomal 11px Tahoma;
background-image: none;}
 
 
#chatbox_header {
  height: 33px;
  }
#chatbox_header.main-head {
  color: #dedfdf;
  background-color: #1f537b;
  }
.chatbox-title,.chatbox-title a.chat-title {
  color: #dedfdf;
  text-decoration: none;
  }
.chatbox-title {
  float: left;
  margin: 0;
  padding: 2px 5px 0 5px;
  width: 15em;
  }
.chatbox-options {
  float: right;
  list-style: none;
  font-size: 11px;
  margin: 0.7em 0.5em 0.5em 0.5em;
  }
.chatbox-options li {
  display:inline;
  }
.chatbox-options li,.chatbox-options li a,.chatbox-options li label {
  color: #dedfdf;
  }
#chatbox_messenger_form {
  margin: 10px 0 0 0;
overflow: auto;
  }
 
#chatbox {
font-family: Tahoma;
font-size: 12px;
  position: absolute;
  top: 40px;
  left: 2px;
  right: 1px;
  bottom: 68px;
  overflow: auto;
  line-height: 10px;
background: #fff url(http://cB4.upanh.com/19.0.24859303.7xb0/untitled1.png) no-repeat right top;
  }
#chatbox p {
  line-height: 1.2em;
  }
.chatbox_row_1 {
  padding: 8px;
  background-color: #;
padding: 3px;
color: #b4d8b8;
font-family: Tahoma;
font-size: 12px;
  }
.chatbox_row_2 {
  padding: 8px;
  background-color: #;
border-top: 0px;
border-bottom: 0px;
padding: 3px;
color: #b4d8b8;
font-family: Tahoma;
font-size: 12px;
  }
.chatbox_row_3 {
 
  background-color: #;
padding: 3px;
color: #b4d8b8;
font-family: Tahoma;
font-size: 12px;
  }
#chatbox_footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  }
#message,#submit_button{
  border-width: 1px;
  }
 
.fontbutton{
  cursor: pointer;
  text-align: left;
border: 1px solid #A9B8C2 !important;
-moz-border-radius: 3px; border-radius: 3px;font-size: 11px;
    font-family: Tahoma,Verdana,Arial,Helvetica,sans-serif;background: #F4F5F4 url(http://i1209.photobucket.com/albums/cc400/dothinh1105/CSS/tile_b11.gif);
  }
.fontbutton_normal {
  background: #F4F5F4 url(http://i1209.photobucket.com/albums/cc400/dothinh1105/CSS/tabbg110.png);
  }
.fontbutton_selected {
  border: 1px solid #00C6D4 !important;
color: #00C6D4;background: #fff url(http://i1209.photobucket.com/albums/cc400/dothinh1105/CSS/tile_b11.gif);
  }
.fontbutton_clicked {
  background: #959595;
  border: 1px solid #22229C;
  }
 
/*Internet Explorer fixers and hacks for Chatbox *
/* html #chatbox-members {
   
/* IE expressions helping IE work in Standards mode */
height: expression(( document.documentElement.clientheight ? document.documentElement.clientheight : document.body.clientheight) - ( (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 3)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2 * 0) )  "px");
  }
* html #chatbox {
   
/* IE expressions helping IE work in Standards mode */
height: expression(( document.documentElement.clientheight ? document.documentElement.clientheight : document.body.clientheight) - ( (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 3)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2 * 0) )  "px");
  width: expression(( document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth) - ( (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 10)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 1)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2 * 1.3) )  "px");
  }
* html #chatbox-footer {
 
/* IE expressions helping IE work in Standards mode */
width: expression(( document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body.clientWidth) - ( (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 0)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 0)  (parseInt(document.body.currentStyle.fontSize) * 1.3333333 * 2 * 0) )  "px");
  }
#chatbox_contextmenu {
  border: 2px solid black;
  background-color: #f4f9fd;
  }
#chatbox_contextmenu p {
  margin:0;
  padding: 1px 4px;
  font-family: Tahoma;
  background: #fbfbfb;
  border-bottom:1px solid #777;
  }
#chatbox_contextmenu p.hover {
  background: #f4f4f4;
  }
#chatbox_contextmenu p.close {
  padding: 1px;
  font-size: 95%;
  color:#fff;
  background: url('');
  }
#chatbox_contextmenu p.close img {
  vertical-align: middle;
  padding-left: 20px;
  }
#chatbox_contextmenu a {
  color: #00569c;
    text-decoration: none;
    font-size: 95%;
  }
#chatbox_contextmenu a:hover {
  color: ;
  }
.date-and-time{font-size: 10px; color: gray;}
 
a:link,a:active,a:visited {
    text-decoration: none;
    }
a:hover{
  text-decoration: none !important;
    }
a:hover{
text-decoration: none!important;
    color : yellow;text-shadow:0 0 .2em black, 0 0 .2em black, 0 0 .2em black;
    }
 
#message,#submit_button{
  border-width: 1px;
  }


 [/font][/color]

Code:

<iframe id="tabiframe" src="link trang html" width="700" height="400px" scrolling="" frameborder="0"></iframe>

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