When I change the HTML declaration my background becomes white instead of green. Before:

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Editorial Team

Asked: June 5, 20262026-06-05T15:10:39+00:00 2026-06-05T15:10:39+00:00

When I change the HTML declaration my background becomes white instead of green. Before:

0

When I change the HTML declaration my background becomes white instead of green.

Before:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

after, this is the new requirement:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

How should I do to make my code work with the new requirement? My CSS:

*  {font-family:arial;}

.avnamn{ 
                color: #90002b; 
                font-size: 140%; 
                display: inline; 
                vertical-align: 3%; 
                margin-left: 1%;
                }

.b{border:1px solid #000;}

.readonly{background-color: #CCC;}

Any help is appreciated.

.Webdings{
    font-family: Webdings;
    }

ul{margin-top: 0px}

.mt3{margin-top:-3px;}
.mt5p{margin-top:5px;}

.fontS80 {font-size: 80%;} 
a:link{color:#000; text-decoration:none; }
a:visited{color:#000; text-decoration:none; }
a:hover{color:#000; text-decoration:none; }
a:active{color:#000; text-decoration:none; }

.fontS75 {font-size: 75%;} 

.link{color: #003366;
    text-decoration: underline;
    cursor: pointer;
    font-weight: bold;}

.link_sm{color: #003366;
    text-decoration: underline;
    cursor: pointer;}

.link_sm{font-size: 70%;cursor: pointer;}

.small{font-size: 75%;}

.smallg{font-size: 75%;
color: #555;}

.ssmall{
    font-size: 65%;
    font-weight: bold;
    color: #555;
}
.small60{font-size: 60%;}
.small50{
    font-size: 50%;
    color: #333;
}
.smallb{font-size: 85%;}
table{display:inline;}

h1{font-size: 130%;display:inline;}
h2{font-size: 100%;display:inline;}
h3{
    font-size: 80%;
    display:inline;
    font-family: "Arial Unicode MS", Arial, Helvetica, sans-serif;
}
h4{font-size: 70%;display:inline;}
h5{
    font-size: 80%;
    display:inline;
    font-family: "Arial Unicode MS", Arial, Helvetica, sans-serif;
}

.hthin{
    font-size: 125%;
}

.th {text-align: left;}

td, th{font-size: 75%;
    vertical-align: text-top;}
.td_link{cursor: pointer;}
.td40{height:40px;}
.td60{height:60px;}



.thkant{
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
    font-size: 70%;
        text-align: left;
}

.labb{F0F0E3; c1c1b3 }

.bb{border-bottom: 1px solid #000;}
.bbV{border-bottom: 1px solid #FFF;}
.TB_nbA {background-color:#CCC;}
.TB_bt, .TB_nb, .TB_db, .TB_bb {background-color:#efefdc;}

.hk {background-color:#d9ddb3;}

.hknot {background-color:#f9faf2;}
/*<!--F8F8F1-->*/
.TB_bt{border-top: 1px solid #FFF;}
.TB_bt5{border-top: 5px solid #FFF;}
.TB_bb{border-bottom: 1px solid #999;}
.TB_bb2{border-bottom: 2px solid #c1c1b3;}
.TB_db{border-bottom: 1px solid #000; border-top: 1px solid #000;}
.TB_tb{border-top: 2px solid #efefdc;}

.TB_bo{border: 2px solid #efefdc;}
.TB_bo_hk{border-top: 1px solid #efefdc;}


.TB_bo2{border: 1px solid #efefdc;}

.TB_bo2B{
border-top: 2px solid #c1c1b3;
border-left: 3px solid #efefdc;
border-right: 3px solid #efefdc;
border-bottom: 2px solid #c1c1b3;
}

.TD_bo{
    border-right: 1px solid #c1c1b3;
    width: 9%;
    font-size: 70%;
    text-align: center;
}

.TD_bo2{

    border-right: 0;
    width: 9%;
    font-size: 70%;
    text-align: center;
}

.ytb{
    border-left:3px solid #efefdc;
    border-right:3px solid #efefdc;
}

.datum {
    font-size: 70%;
    padding-right: 5px;
    vertical-align: text-top;} 
.sub {background:#EAEAEA;}
.sub_meny, .sub_meny_r, .sub_meny_active, .sub_meny_sm{
    font-size: 70%;
    padding-left: 20px;
    padding-right: 20px;
    vertical-align: text-top;}

.sub_meny_sm {
    font-size: 60%;
    vertical-align: middle;
    padding-left: 10px;
    padding-right: 10px;
}   

.sub_meny_r{
    float:right;
    font-size: 70%;
    padding-left: 8px;
    padding-right: 8px;}

.sub_meny_rm{margin-top:4px;}
.sub_meny_active{font-weight: bold;}

.flikkant1 {
    background-image: url(../images/fl1k.jpg);
    background-position: center;
    z-index: -1;}

.inl_namn{
    font-weight: bold;
    font-size: 70%;
    color: Black;
    text-decoration: none;}

.th{text-align: left;}
.tr{text-align: right;}

.g1{
    background-color: #FFF;
    line-height: 20px;
}

.g2{
    background-color: #EEE;
    line-height: 20px;
}

.g3{
    background-color: #DCDCDC;
    line-height: 20px;
    font-weight: bold;
    font-size: 100%;
}
.g4{
    background-color: #CCC;
    line-height: 20px;
}

.popup{
    border-color: #000; 
    border-style: groove; 
    border-width: 2px; 
    padding: 0px; 
    background-color: #FFF;
    font-size: 70%;
}

.popuphandlaggare{ 
    border-color: #000;
    border-style: groove;      
    border-width: 2px;      
    padding: 0px;      
    background-color: #FFF;     
    font-size: 70%;     
    position: absolute;     
    top: 900px; 
    }

.popupN{
    background-color: #F0F0E3;
    color: #000;
    width: 100%;
    display: inline;
    font-weight: bold;
    height: auto;
    padding: 2px;
    border-bottom: 1px solid #000;
}
.pin{padding: 6px;}

.fl10, .fl20, .fl30, .fl40, .fl50, .fl60, .fl70, .fl80, .fl90, .fl100 {
    padding-bottom:4px;color: #000000;
}

.over{
    background-color: #EFEFDC;
    line-height: 20px;
}

.half{
line-height:50%;
}

.quarter{
line-height:25%;
}

.lh10{
line-height:10%;
}

.checkmargin {margin-right: 25px;}  
.checkmarginL {margin-left: 25px;}  

.pusher {padding-left: 15px;"}
.pusherR {margin-right: 40px;"}

.rand3{background-color: #FFF; line-height: 3px;}
.rand1{background-color: #FFF; line-height: 1px;}

.whiteborder {     color: #ffffff;      border: 4px solid #ffffff;      padding: 10px;      margin: 10px; }
#details { width: 700; color: #ffffff; }
.column1 {     color: #000000; margin: 0;      padding: 0;     width: 600px;     border:0;     float: left; }
.column2 {     color: #000000;margin: 0;      padding: 0;     border:0;     width: 80px;     float: right; }

.f200 {
    color: #000000;
}

.f210 {
    color: #000000;float: left;
}
.f220 {
    width: 400;
}
.f1450 {
    width: 600;
    float:left;
}
.f1550 {
    width: 150;
    float:left;
    padding:15px;
}
.paddedcell {
    padding:15px;
}
.b2{border:2px solid #efefdc;}
.inp_sel{width: 80%;}

.fl21{float:left; padding:5px; margin:5px; width:150px;} .fl455{float:left; padding:5px; margin:5px; width:120px;} 

.form-bg {
  background: #eeefdf;
  width:1000px;
  overflow:hidden;
}
.form-bg2 {
  background: #eeefdf;
  width:100%;
  overflow:hidden;
}
.data-bar {
  border-bottom:1px solid #fbfbf7;
  display:inline-block;
  padding:10px 10px;
}

.left {
float:left;
width:200px;

}
.discount {
float:right;
width:500px;

}
.discounts {
width:900px;

}
.right {
float:right;
width:700px;
}
.yta20 {
background: #eeefdf;
width:1100px;
}

.yta2 {

width:1100px;
}

.data-box {
width:650px;
height:100px;
border:1px solid #cbcbcb;
}
#table td { 
margin:120px; 
} 

#personName {     float:left;     width:300px;   }  #otherDetails {     float:right;     width:450px;      }

.th_rad_sort {border-bottom: 2px solid #000000; text-decoration: none;"}

a img { border: 0; outline:0;}

.horizontal-gradient {
    background: #1a2adb; /* Old browsers */
    background: -moz-linear-gradient(left,  #1a2adb 0%, #a1e6ed 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(0%,#1a2adb), color-stop(100%,#a1e6ed)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left,  #1a2adb 0%,#a1e6ed 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left,  #1a2adb 0%,#a1e6ed 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left,  #1a2adb 0%,#a1e6ed 100%); /* IE10+ */
    background: linear-gradient(left,  #1a2adb 0%,#a1e6ed 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#1a2adb', endColorstr='#a1e6ed',GradientType=1 ); /* IE6-9 */
    color: white;
    width: 1015px;
}
.f { float: right;     color: white; }


.handlaggare { width: 1000px; }

div.data-box-nat{
    margin-bottom: 10px;
    border: 2px solid gray;
    width: 600px;
}
div.data-box-pct{
    margin-bottom: 10px;
    border: 2px solid gray;
    width: 600px;
}

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1 Answer

Editorial Team · Answer 1 · 2026-06-05T15:10:41+00:00

The change has made browsers handle the page in “standards mode” rather than “Quirks Mode”. This can mean just about anything, from no visible change to a complete mess.

If the use of XHTML 1.1 has been imposed on you, then start from learning what XHTML is, rewrite the page to conform to it, validate, and make corrections. When you need specific help with some issue, post a URL or the entire code (e.g. via jsfiddle).

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