Gracias maycolalvarez, esto empieza a funcionar ;)
Veo la imagen en la cabecera, pero cortada :(
Es decir, aparece un poco de la imagen, la parte de arriba, pero se corta porque las letras del blog (título, subtítulo, etc) la tapan.
¿Dónde debo definir el tamaño de la imagen o dónde debe empezar el blog, para desplazarlo hacia abajo y que la imagen se vea completa?
Te adjunto la hoja de estilos, creo que es aquí:
Código:
html, body{ padding:20px 0px 20px 0px; margin:0; text-align:center; font-family:verdana; font-size: 13px;}
#page{ width:900px; text-align:left; margin-left:auto; margin-right:auto;}
#header{ position:relative; width:900px; margin: 0px; padding: 0px; height:50px; overflow-x:hidden;}
#header h1{ position:relative; float:left; margin:0px 0px 0px 250px; width: 650px; padding:0px; font-family:arial; font-weight:bold; font-size:20px; text-transform:uppercase;}
#header h1 a{ text-decoration:none;}
#header h1 a:hover{ text-decoration:none;}
#header h2{ position:relative; float:left; clear:left; margin:0px 0px 0px 250px; width: 650px; padding:0px; font-family:arial; font-weight:bold; font-size:8px; text-transform:uppercase;}
#leftcol{ width:230px; float:left; position:relative; padding: 0px 20px 0px 0px; text-align:right; overflow-x:hidden;}
#menu {margin:0px 0px; text-align:right; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; }
#menu a {font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; text-decoration:none;}
#menu a:hover {font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; text-decoration:none;}
h2.menuheader {cursor: pointer;font-family:arial; font-weight:bold; font-size:14px; text-transform:uppercase;margin:0px; padding:0px;}
#menu ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; width:230px; clear:left; float:right;}
#menu ul li{margin: 0px 0px 0px 0px; display: block; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px;}
#menu ul li a{ width: 225px; display: block; padding: 5px 0px 5px 5px; text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li a:hover{ text-decoration:none; }
#menu ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li a{ width: 205px; display: block; padding: 5px 20px 5px 5px; text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li a:hover{ text-decoration:none; }
#menu ul li ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li ul li a{ width: 185px; padding: 5px 40px 5px 5px; display: block; text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li ul li a:hover{ text-decoration:none; }
#menu ul li ul li ul li ul {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; clear:left; }
#menu ul li ul li ul li ul li{margin: 0px 0px 0px 0px; display: block; }
#menu ul li ul li ul li ul li a{ width: 165px; padding: 5px 60px 5px 5px; display: block; text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
#menu ul li ul li ul li ul li a:hover{ text-decoration:none; }
ul#recentcomments {padding: 2px 0px 2px 0px; margin: 0px 0px 0px 0px;list-style: none; width:230px; clear:left; float:right;}
ul#recentcomments li{margin: 0px 0px 0px 0px; display: block; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px;}
ul#recentcomments li a{ width: 225px; display: block; padding: 5px 0px 5px 5px; text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; margin: 0px 0px 0px 0px; vertical-align: bottom;}
ul#recentcomments li a:hover{ text-decoration:none; }
#recentcomments a{ text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px;}
#recentcomments a:hover{ text-decoration:none; font-weight:bold; font-family:arial; text-transform:uppercase; font-size:14px; }
#maincol{ float: right; display:inline; position: relative; width:650px; font-family:verdana; font-size: 13px;overflow-x:hidden; text-align:left;}
#maincol h1 {margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:22px; text-transform:uppercase; clear:both;}
#maincol h2 { margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:20px;text-transform:uppercase; clear:both;}
#maincol h2 a{ text-decoration:none;}
#maincol h3 { margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:18px; text-transform:uppercase; clear:both;}
#maincol h4 { margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold;font-size:16px; text-transform:uppercase; clear:both;}
#maincol h5 { margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:14px; text-transform:uppercase; clear:both;}
#maincol h6 { margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:12px; text-transform:uppercase; clear:both;}
#maincol p{ font-size: 13px; line-height:1.7em; clear:left;}
#maincol p a:hover{ text-decoration:none;}
#maincol ul{ font-size: 13px; line-height:1.7em; clear:left;}
#maincol ol{ font-size: 13px; line-height:1.7em; clear:left;}
h2.contentheader{ cursor: pointer; position:relative; float:left; margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:20px; text-transform:uppercase; clear:left;}
h2.contentheader:hover{ }
h2.contentheader:active{ }
.content{clear:both;}
.permalink{ margin:0px 0px 0px 0px; padding:0px; font-family:arial; font-weight:bold; font-size:12px; text-transform:uppercase; clear:both;}
.permalink a{ text-decoration:none;}
.permalink a:hover{ text-decoration:none;}
table#calendar_wrap {width:230px; overflow:hidden;clear:both; }
#wp-calendar{font-family: verdana; font-size: 13px; text-decoration:none; clear:both;width:210px; margin: 6px auto 6px auto; padding: 0px 10px 0px 10px;}
#wp-calendar a{font-family: verdana; font-size: 13px; text-decoration:none; }
#wp-calendar a:hover{font-family: verdana; font-size: 13px; text-decoration:none; }
blockquote { margin:20px; padding:8px 8px 8px 15px;}
blockquote p {background-color:inherit; font-size:0.9em; line-height:1.3em;}
label {background-color:inherit; font-size:0.9em; font-weight:bold;}
table#wp-calendar {margin:0 0 20px; width:140px;}
code {font-size:1.2em; display:block; padding:5px 5px 5px 8px; margin:5px 0 15px 0;}
#respond{font-weight:normal;}
#s,#submit { font-size:0.9em; margin:0 0 16px; padding:4px; width:130px;}
#author,#email,#url,#comment { font-family:Verdana,Tahoma,Arial,Sans-Serif; font-size:1em; margin:0; padding:4px;}
#commentsection {margin:25px 0 0;}
#commentsection p {margin:0 0 6px;}
img.centered {display:block; margin-left:auto; margin-right:auto;}
img.alignright {padding:4px; margin:0 0 2px 7px; display:inline;}
img.alignleft {padding:4px; margin:0 7px 2px 0; display:inline;}
.aligncenter { display: block; margin-left: auto; margin-right: auto;}
.alignright {float:right;}
.alignleft {float:left;}
.divider{height: 25px; width:604px; background: url(img/divider.jpg) top center no-repeat; margin: 10px auto 5px auto;}
.left { float:left; margin:10px 15px 10px 0;}
.right { float:right; margin:10px 0 5px 10px;}
.center { margin:5px auto 12px; text-align:center;}
.textright {text-align:right;}
.small {font-size:0.8em;}
.bold {font-weight:bold;}
.hide {display:none;}
.post {margin:0px;}
#postinfotext{font-family:arial; font-size: 14px; line-height:1.7em; font-weight:bold; text-transform:uppercase; padding: 0px 0px 0px 0px; margin: 0px 0px 10px 0px;}
#postinfotext a { text-decoration:none;}
#postinfotext a:hover{ }
.commentheader {font-family:arial; font-size: 16px; line-height:1.7em; font-weight:bold; text-transform:uppercase; }
.comment { margin:0 0 10px; padding:2px 5px 0px 8px;}
.commenticon {font-family:arial; font-size: 14px; line-height:1.7em; font-weight:bold; text-transform:uppercase;}
.commenticon a{ text-decoration:none;}
.commenticon a:hover{ }
.commenttext { font-size: 13px; line-height:1.7em; }
.commenttext p{ font-size: 13px; line-height:1.7em; }
.comment p {line-height:1.7em; margin:0px; padding-bottom:2px;}
.gravatarside {float:right; width:48px; height:48px; margin:0px 5px 5px 5px;}
.wp-caption { text-align: center; padding-top: 4px; margin: 10px; -moz-border-radius: 3px; -khtml-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; clear:both;}
.wp-caption img { margin: 0; padding: 0; border: 0 none;}
.wp-caption-dd { font-size: 11px; line-height: 17px; padding: 0 4px 5px; margin: 0;}
.navigation {font-family:arial; font-size: 14px; line-height:1.7em; font-weight:bold; text-transform:uppercase;}
.navigation a { text-decoration:none;}
.navigation a:hover{ }
.prevlink{margin: 0px 6px 0px 0px;}
.nextlink{margin: 0px 0px 0px 6px;}
.clearfix:after { content: "."; display: block; height: 0; clear: both; visibility: hidden; }
.clearfix{display: inline-block;}
/* Hides from IE-mac \*/
* html .clearfix{height: 1%;}
.clearfix{display: block;}
/* End hide from IE-mac */
/*printer styles*/
@media print{
/*hide the left column when printing*/
Gracias por tu ayuda, compañero.