Qual é minha questão:
Bom, nas mensagens o fundo dos perfis tá meio avermelhado com uma textura, gostaria de deixar TODO preto. Uma imagem pra melhor entendimento:

https://i.imgur.com/w3Ge9MA.png


Caso ajude, aqui está minha CSS:

Spoiler:

Endereço do meu fórum:
http://anke.forumeiros.com/forum

Versão do fórum:
PHPBB3

Boa noite,

Troque o seu CSS por este.

Código:

/************FONTES****************/




@font-face {
font-family: 'Amatic SC';
font-style: normal;
font-weight: 400;
src: local('Amatic SC Regular'), local('AmaticSC-Regular'), url('http://themes.googleusercontent.com/static/fonts/amaticsc/v3/DPPfSFKxRTXvae2bKDzp5D8E0i7KZn-EPnyo3HZu7kw.woff') format('woff');
}




@font-face {
font-family: 'Wire One';
font-style: normal;
font-weight: 400;
src: local('Wire One'), local('WireOne'), url(http://themes.googleusercontent.com/static/fonts/wireone/v3/fas9dl2wmMkt5rCu-aBez_esZW2xOQ-xsNqO47m55DA.woff) format('woff');
}




@font-face { font-family: "sueellen"; src: url('http://themes.googleusercontent.com/static/fonts/sueellenfrancisco/v2/TwHX4vSxMUnJUdEz1JIgrrtXaZAN_aGv07JTA91X2HI.woff'); }

@font-face { font-family: "caviardreams"; src: url('http://static.tumblr.com/4yxykdm/xXTlrecqr/caviardreams.ttf'); }




/************FIM DAS FONTES****************/




.postbody .content {
text-align:justify;
padding:60px;
}
.chatbox .post {
background-color:#030303;
border-bottom:none;
  padding:1px;
}
#chatbox_footer {
background-color: transparent;
}
.chatbox_row_1 {
 padding-right: 20px;
  padding-left: 20px;
font-size:11px;
 text-transform:none;
 background-color:  transparent;
text-align:left;
 }
.chatbox_row_2 {
 padding-right: 20px;
  padding-left: 20px;
font-size:11px;
 text-transform:none;
 background-color:  transparent;
text-align:left;
 }
.chatbox_row_3 {
 padding-right: 20px;
  padding-left: 20px;
font-size:11px;
text-transform:none;
 background-color:  transparent;
text-align:left;
 }




#content-container div#left {
background:url('');
top: 0;
left: 0;
}
.reck {
text-align:center;
text-transform:none;
align:center;
 float:center;
  margin-top:150px;
height:150px;
background-color:#07080F;
border-bottom: 4px solid #160101;
color:#BCBCBC;
}
.rck {
  text-align:center;
  align:center;
  text-transform:none;
  padding-top:150px;
 float:center;
  margin-top:150px;
font-family:tulpen one;
font-size:50px;
color:#bcbcbc;
}
.forabg li.row dd.topics {
background: #070303;
position: relative;
padding-left:0px;
padding-right:0px;
left: 53px;
bottom: -30px;
width: 87px;
padding-bottom: 10px;
height: 11px;
font-size: 9px;
text-transform: uppercase;
}
.forabg li.row dd.posts {
background: #070303;
position: relative;
left: 59px;
  padding-left:0px;
padding-right:0px;
bottom: -30px;
width: 87px;
height: 11px;
font-size: 9px;
padding-bottom: 10px;
text-transform: uppercase;
}
.forabg li.row dd.lastpost {
text-align:left;
text-transform:uppercase;
font-family:tahoma;
font-size:10px;
border-bottom: 10px solid #070303;
border-right: 10px solid #070303;
border-left: 10px solid #070303;
border-top: 30px solid #070303;
width: 175px;
margin-left: 35px;
margin-top:0px;
background-color: #070303;
padding: 7px !important;
padding-top: 35px !important;
box-shadow: 0px 0px 5px black;
}
::-webkit-scrollbar {width: 8px;height: 13px;background-color: #07080F;}
::-webkit-scrollbar-thumb{background-color: #040101;} 
.module {
text-align:center;
background-color:transparent;
}
.module .h3 {
visibility:hidden;
}
.module .h3 {
visibility:hidden;
display: none;
}
li.header dd, li.header dt {
margin-top: 10px;
text-align: center;
}
.module .h3 {
visibility:hidden;
}
a.mainmenu {
background-color:
transparent;
padding: 3px;
margin-top: 30px!important;
margin-right: -8px !important;
font-weight: 400!important;
font-family: helvetica,Serif !important;
font-size: 11px;
color:
#A1A1A1;
width: 880px;
text-transform: uppercase;
border-bottom: 3px solid
#5b384f;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
a.mainmenu:hover {
background-color:
transparent;
padding: 3px;
margin-top: 30px!important;
margin-right: -8px !important;
font-weight: 400!important;
font-family: helvetica,Serif !important;
font-size: 11px;
color:transparent;
text-shadow: 0px 0px 1px #A1A1A1;
width: 880px;
text-transform: uppercase;
border-bottom: 3px solid
#25041a;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.module .h3 {
visibility:hidden;
}
#textarea_content {   
margin-top: 3px;
}
#chatbox {
background-color:#000000;
}
.chatbox-members{
background-color:#000000;
}
#chatbox_header {
background-color:transparent;
}
.opacity img {
filter:alpha(opacity=50);
-moz-opacity: 0.5;
opacity: 0.5;}
.opacity div {
filter:alpha(opacity=50);
-moz-opacity: 0.5;
opacity: 0.5;
-webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.opac div {
opacity:0.8;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.opac:hover div {
opacity:0.8;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.opacity:hover div {
filter:alpha(opacity=100);
-moz-opacity: 1.0;
opacity: 1.0;
-webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}




.opac {
opacity:0.1;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.opac:hover {
opacity:0.9;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.opacity:hover img {
filter:alpha(opacity=100);
-moz-opacity: 1.0;
opacity: 1.0;
}




#wrap {
background-color: #000000;
border: 4px solid #;
box-shadow: 0 0 10px 2px #000000;
}
p {
overflow: auto;
max-height: 300px;
display: block;
margin: auto;
text-transform: uppercase;
font-size: 9px;
}
.h3 {
font-size: 12px;
text-transform: uppercase;
text-align: left;
text-shadow: 1px 1px 1px #000000;
letter-spacing: 0px;}
li.header dl.icon {
height: 42px;
background-color:#25041a;
border-bottom: 0px dotted #120707;
background-repeat:repeat;
font-family:arial;
letter-spacing: 2px;
padding: 10px 6px 0px;
font-size: 8px;
text-align: center;
text-shadow: 0 2px 2px black;
text-transform: uppercase;
vertical-align: middle;
}
 .table-title h2 {
color: #BDBDBD;
text-shadow: 1px 1px 1px #000000;
font-family: amatic sc;
font-size: 32px;
letter-spacing: 4px;
font-style: normal;
text-transform: uppercase;
}
ul.forums {
background: #030303;
  margin-top:-0px;
background-repeat: repeat-yes;
border-radius: 0px 0px 0px 0px;
border-bottom: 8px solid #25041a;
box-shadow:0px 2px 8px #000000;
}
.desc9 {
border-bottom:10px solid #070303;
border-right: 10px solid #070303;
border-radius: 100px 0px 0px 100px;
background-color:#120707;
background-repeat: repeat;
text-transform:uppercase;
color: #565656;
font-family:arial;
display: block;
font-size: 9.5px;
line-height: 100%;
margin-left: 70px;
margin-top: 5px;
padding: 10px;
text-align: justify;
text-shadow: 0px 0px 2px #000000;
width: auto;
letter-spacing: 0px;
}
.desc8 {
border-bottom:10px solid #070303;
border-right: 10px solid #070303;
border-left: 10px solid #070303;
background-color:#120707;
background-repeat: repeat;
text-transform:uppercase;
color: #565656;
font-family:arial;
display: block;
font-size: 9.5px;
line-height: 100%;
margin-left: 70px;
margin-top: 5px;
padding: 0px;
text-align: justify;
text-shadow: 0px 0px 2px #000000;
width: auto;
letter-spacing: 0px;
}
a.forumtitle {
color:#bfbcbb;
background-color: #070303;
border-radius: 500px 0px 0px 0px;
display: block;
letter-spacing:2px;
font-family:caviardreams;
float: center;
font-size: 18px;
margin-bottom: -20px;
margin-top: 10px;
margin-left: 70px;
padding: 3px;
text-align: center;
text-transform: lowercase;
width: auto;
height: 15px;
text-shadow: 1px 1px 1px #000000;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
a.forumtitle:hover {
margin-left: 70px;
color:transparent;
border-radius: 500px 0px 0px 0px;
background-color: #070303;
border-radius: 0px 0px 0px 0px;
display: block;
letter-spacing:2px;
font-family:caviardreams;
float: center;
text-decoration:none;
font-size: 18px;
margin-bottom: -20px;
margin-top: 10px;
margin-left: 70px;
padding: 3px;
text-align: center;
text-transform: uppercase;
width: auto;
height: 15px;
text-shadow: 0px 0px 1px #BDBDBD;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.formdesc a:link, .formdesc a:visited, .formdesc a:active {
background-color: transparent;
color: #bdbdbd;
font-size: 8px;
letter-spacing: 1px;
padding: 3px;
text-transform: uppercase;
}
.formdesc a:link:hover {
background-color: transparent;
color: #ffffff;
font-size: 8px;
letter-spacing: 2px;
padding: 3px;
text-transform: uppercase;
}
.formdesc {
border: 1px solid #120707;
background-color: #120707;
border-radius: 10px 10px 10px 10px;
margin-bottom:-22px;
display: block;
font-size: 8px;
margin-top: 5px;
padding: 3px;
text-align: center;
text-shadow: 1px 1px 0 #COLOR;
text-transform: uppercase;
}
p em b a.gensmall {
font-family: Tulpen One;
font-size: 30px;
line-height:100%;
letter-spacing: 0px;
font-style: normal;
text-align: center;
text-transform: none;
}
p em {
margin: 4px;
color: transparent;
display: block;
width: 500px;
margin-left:250px;
align: center;
line-height:100%;
}
.post {
background: #030303;
background-repeat: repeat;
background-position: center;
border-bottom: 8px solid #25041a;
padding:10px 10px 10px 10px;
color:#797a79;
}
.postprofile dd {
text-align: left;
}
.postprofile dd, .postprofile dt {
margin-top: 10px;
margin-right: 5px;
margin-left: 5px;
}
dl.codebox {
background-color:#2B1313;
background-image:url('http://i877.photobucket.com/albums/ab335/LuiRopez/patt.png');
border-radius: 15px 15px 15px 15px;
color:white;
  text-transform:none;
border: 1px solid #120707;
}
.spoiler_content.hidden {
background-color:#2B1313;
background-image:url('http://i877.photobucket.com/albums/ab335/LuiRopez/patt.png');
border-radius: 15px 15px 15px 15px;
color:white;
text-transform:none;
border: 1px solid #120707;
}
blockquote {
background-color:#2B1313;
background-image:url('http://i877.photobucket.com/albums/ab335/LuiRopez/patt.png');
border-radius: 15px 15px 15px 15px;
color:white;
  text-transform:none;
border: 1px solid #120707;
}
.topics {
text-shadow: 1px 1px 1px #000000;
}
.posts {
text-shadow: 1px 1px 1px #000000;
}
.lastpost {
text-shadow: 1px 1px 1px #000000;
text-align:center;
align:center;
}
.postprofile{
text-align: center;
}
.postprofile dt a img {
box-shadow: 1px 1px 2px #000000;
margin-top: 0px;
width:200px;
margin-bottom:8px;
height:400px;
}
.postprofile {
background-image: url(http://i48.tinypic.com/2aikcns.jpg);
border-left: 9px double rgb(0, 0, 0);
margin-top: 17px;
border-left: 9px double #120707;
float: right;
font-family: arial;
line-heighr:90%;
font-size: 12px;
text-transform:uppercase;
margin-right: -3px;
padding-top: 13px;
color: #d4d4d4;
text-align: center;
width: 220px;
box-shadow:0px 2px 5px #000000;
}
p.author {
background-image: url('http://i48.tinypic.com/2aikcns.jpg');
position: relative;
right: -7em;
color:#e3e3e3;
background-color:#000000;
text-align: center;
-moz-border-radius: 6px;
-webkit-border-radius: 6px;
border-radius: 6px;
padding: 3px !important;
text-transform: lowercase;
box-shadow: 0px 2px 5px #000000;
}
.postprofile a:link, .postprofile a:active, .postprofile a:visited, .postprofile dt.author a {
color: #d4d4d4; 
font-family: amatic sc;
font-size: 30px;
line-height: 40%;
font-weight:800;
margin-bottom:-15px;
letter-spacing: 1px;
font-style:normal;
text-transform:uppercase;
text-decoration: none;
text-shadow: 1px 1px 1px #000000;
-webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.postprofile a:hover { 
  margin-top:0px;
font-family: amatic sc;
font-size: 30px;
letter-spacing: 3px;
font-style:normal;
text-transform:uppercase;
text-shadow: 1px 1px 1px #000000;
 -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}




.subs a {
text-transform:uppercase;
text-color:#E7E7E7;
font-size:9px;
border-left: 4px solid #07080F;
margin: 0px;
padding: 2px;
    -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.subs a:active, .subs a:hover {
background-color:#070303;
text-transform:uppercase;
color:#E7E7E7;
border-left: 40px solid #07080F;
margin: 0px;
padding: 2px 0px 0px;
    -webkit-transition: all .5s ease-in-out;
-moz-transition: all .5s ease-in-out;
-o-transition: all .5s ease-in-out;
transition: all .5s ease-in-out;
}
.formdesc a:link, .formdesc a:visited, .formdesc a:active {
background-color: transparent;
color: #E1E1E1;
font-size: 8px;
letter-spacing: 1px;
padding: 3px;
text-transform: uppercase;
}
.formdesc a:link:hover {
background-color: transparent;
color: #E1E1E1;
font-size: 8px;
letter-spacing: 2px;
padding: 3px;
text-transform: uppercase;
}
.formdesc {




background-color: #070303;
border: solid 1px #070303;
border-radius: 0px 0px 50px 50px;
margin-bttom:-20px;
width:400px;
height:auto;
float:center;
position:relative;
display:block;
align:center;
font-size: 8px;
margin-top: 5px;
text-align: center;
text-shadow: 1px 1px 0 #COLOR;
text-transform: uppercase;
}








/************LEGENDAS*********/




#main-content em{
font-size:0px
}
#main-content em::before{
content:'Legenda: ';
font-size:25px;
font-style:normal;
opacity: 0.0;
}
#main-content em b *{
font-size:30px;
font-style:normal;
font-align:center;
font-family: amatic sc;
}
#main-content em b *::hover{
font-size:30px;
font-style:normal;
font-align:center;
font-family: amatic sc;
text-transform: uppercase;
}
#main-content em b a::before{
content:' • ';color:black
}
#main-content em b:first-child a::before{
content:''
}
#main-content em,
#main-content em *:link{
cursor:default;
color:inherit
}




/************FIM DAS LEGENDAS*********/

Até mais.

Olá!

Procure por isso na sua Folha de Estilos CSS

Código:

.postprofile {
background-image: url('http://i48.tinypic.com/2aikcns.jpg');
border-radius: 0px 0px 100px 0px / 0px 0px 50px 0px;
margin-top: 17px;
border-left: 9px double #120707;
float: right;
font-family: arial;
line-heighr:90%;
font-size: 12px;
text-transform:uppercase;
margin-right: -3px;
padding-top: 13px;
color: #d4d4d4;
text-align: center;
width: 220px;
box-shadow:0px 2px 5px #000000;
}

Troque o código acima por esse:

Código:

.postprofile {
background-image: url(http://i48.tinypic.com/2aikcns.jpg);
border-left: 9px double rgb(0, 0, 0);
margin-top: 17px;
border-left: 9px double #120707;
float: right;
font-family: arial;
line-heighr:90%;
font-size: 12px;
text-transform:uppercase;
margin-right: -3px;
padding-top: 13px;
color: #d4d4d4;
text-align: center;
width: 220px;
box-shadow:0px 2px 5px #000000;
}

Nesse código, procure por https://2img.net/h/oi48.tinypic.com/2aikcns.jpg, essa e a imagem de fundo, basta substituir.

Até mais.

Funcionou !

Obrigada