Personalizando a área de comentários

 LOCALIZE: /* Comments, apague tudo que tiver nessa área e cole o que estiver abaixo!

.comments{clear:both;margin-top:10px;margin-bottom:0;line-height:18px;font-size:13px}
.comments .comments-content{margin-bottom:16px;font-weight:normal;text-align:center}
.comments .comment .comment-actions a,.comments .comment .continue a{
display:inline-block;
margin:10px 10px 10px 10px;
padding:0 7px;
color:#000000 !important; /*--- cor da fonte do botão reply--- */
text-align:center;
text-decoration:none;
background: #f1f1f1;  /*--- cor de fundo do botão reply--- */
border:1px solid #000000;  /*--- cor da borda do botão reply--- */
height:25px;
line-height:25px;
font-weight:normal;
cursor:pointer;
}
.comments .comment .comment-actions a:hover,.comments .comment .continue a:hover {
text-decoration: none;
background: #32CD32; /*--- cor de fundo do botão reply houver--- */
border:1px solid #000000; /*--- cor da borda do botão reply hover--- */
}
.comments .comments-content .comment-thread ol{
list-style-type:none;padding:0;text-align:none}
.comments .comments-content .inline-thread{padding:0}
.comments .comments-content .comment-thread{margin:8px 0}
.comments .comments-content .comment-thread:empty{display:none}
.comment-replies{margin-top:1em;margin-left:40px;}
.comments .comments-content .comment{margin-bottom:0;padding-bottom:0}
.comments .comments-content .comment:first-child{padding-top:16px}
.comments .comments-content .comment:last-child{border-bottom:0;padding-bottom:0}
.comments .comments-content .comment-body{position:relative;
}
.comments .comments-content .user{font-style:normal;font-weight:normal}
.comments .comments-content .user a{font-weight:normal;text-decoration:none;}
.comments .comments-content .icon.blog-author{
background-repeat: no-repeat;
background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAASCAYAAABWzo5XAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEgAACxIB0t1+/AAAAAd0SU1FB9sLFwMeCjjhcOMAAAD+SURBVDjLtZSvTgNBEIe/WRRnm3U8RC1neQdsm1zSBIU9VVF1FkUguQQsD9ITmD7ECZIJSE4OZo9stoVjC/zc7ky+zH9hXwVwDpTAWWLrgS3QAe8AZgaAJI5zYAmc8r0G4AHYHQKVwII8PZrZFsBFkeRCABYiMh9BRUhnSkPTNCtVXYXURi1FpBDgArj8QU1eVXUzfnjv7yP7kwu1mYrkWlU33vs1QNu2qU8pwN0UpKoqokjWwCztrMuBhEhmh8bD5UDqur75asbcX0BGUB9/HAMB+r32hznJgXy2v0sGLBcyAJ1EK3LFcbo1s91JeLwAbwGYu7TP/3ZGfnXYPgAVNngtqatUNgAAAABJRU5ErkJggg==);
width:18px;
height:18px;
display:inline-block;
margin:0 0 -4px 6px;
float:right;
}
.comments .comments-content .datetime a{
font-size:11px;
text-decoration:none; color:#666; /* -- cor do link da data do comentário -- */
}
.comment-content{margin:0 0 8px;padding:0 5px;
}
.comments .comment-block{
margin-left:65px;
position:relative;
background:#fff; /* -- cor de fundo do comentário -- */
border:2px solid #000000; /* --- cor da borda do comentário ---*/
}
.comment-header{ /*--- linha onde fica o nome do autor do comentário --- */
background-color:#f1f1f1;   /*--- cor de fundo--- */
font-size:18px;
border-bottom:1px solid #000000;  /*--- cor da borda --- */
padding:5px;
}
.comment-header a{
color: #32CD32; /*--- cor do link nome do autor do comentario --- */
}
.comments .comments-content .owner-actions{position:absolute;right:0;top:0}
.comments .comments-replybox{border:none;height:230px;width:100%}
.comments .comment-replybox-thread{margin-top:0}
.comments .comment-replybox-single{margin-top:5px;margin-left:48px}
.comments .comments-content .loadmore a{display:block;padding:10px 16px;text-align:center}
.comments .thread-toggle{cursor:pointer;display:inline-block}
.comments .comments-content .loadmore{cursor:pointer;max-height:3em;margin-top:0}
.comments .comments-content .loadmore.loaded{max-height:0;opacity:0;overflow:hidden}
.comments .thread-chrome.thread-collapsed{display:none}
.comments .thread-toggle{display:inline-block}
.comments .thread-toggle .thread-arrow{
display:inline-block;
height:6px;
width:7px;
overflow:visible;
margin:0.3em;
padding-right:4px;
}
.comments .thread-expanded .thread-arrow{background:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAc AAAAHCAYAAADEUlfTAAAAG0lEQVR42mNgwAfKy8v/48I4FeA0AacVDFQBAP9wJkE/KhUMAAAAAElFTkSuQmCC") no-repeat scroll 0 0 transparent;
}
.comments .thread-collapsed .thread-arrow{background:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA AcAAAAHCAYAAADEUlfTAAAAJUlEQVR42mNgAILy8vL/DLgASBKnApgkVgXIkhgKiNKJ005s4gDLbCZBiSxfygAAAAB JRU5ErkJggg==") no-repeat scroll 0 0 transparent;
}
.avatar-image-container{
float:right
vertical-align:middle;
overflow:hidden;
width:65px !important;
height:51px !important;
max-width:65px !important;
max-height:51px !important}
.comments .avatar-image-container img{
padding:0px;
border:2px solid #000000;
width:45px !important;
height:45px !important
;max-width:45px !important;
max-height:45px !important;
}

Personalizando comentários

Mudando o background: 

#comments {
  background: #cccccc; {Altere para a cor que preferir}
  padding: 15px;
}

Personalizando o avatar:

.avatar-image-container {
  margin: .2em 0 0;
{Acrescente aqui as informações que quiser}

}

Personalizando o corpo dos comentários:

.comments .comments-content .comment-content {
margin: 2px 8px; {Margens}
padding: 1px 5px; {Espaço entre o texto e as margens}
background: #eee; 
border: 1px solid #ccc; {Acrescente as informações que quiser, ex: border-radius}
}

#comments .comment-author { 

Personalizando os links "responder" e "excluir":

.comments .comment .comment-actions {
display: block;
list-style-type: none;
margin: 3px 0; {Margem entre links e corpo do comentário}
text-align: right; 
}
.comments .comment .comment-actions a {
color: #000; 
margin: 7px; {Margem entre um link e outro}
padding: 2px; {Espaço entre os links e as margens}
{Pode acrescentar bordas e background}
}

/* Comments