removing the lines from your banner

If you want to remove those grey borders around or behind your banner with your blog title, go to
TEMPLATE-------> HMTL code

then select and delete this section:

/* Header
-----------------------------------------------
*/

#header-wrapper {
width:700px;
margin:0 auto 10px;
border:1px solid $bordercolor;
}

#header {
margin: 5px;
border: 1px solid $bordercolor;
text-align: center;
color:$pagetitlecolor;
}

#header h1 {
margin:5px 5px 0;
padding:15px 20px .25em;
line-height:1.2em;
text-transform:uppercase;
letter-spacing:.2em;
font: $pagetitlefont;
}

#header a {
color:$pagetitlecolor;
text-decoration:none;
}

#header a:hover {
color:$pagetitlecolor;
}

#header .description {
margin:0 5px 5px;
padding:0 20px 15px;
max-width:700px;
text-transform:uppercase;
letter-spacing:.2em;
line-height: 1.4em;
font: $descriptionfont;
color: $descriptioncolor;
}