Header won't touch the top

[oneesans]

Username of journal: oneesans
Layout Style: flexible squares
Basic, Paid or Plus: plus
Problem you are having: I can't make my header touch the very top of the page. I tried adding in top-margin 0px, and a negative 5x but it messed it up. Can anyone help me get the coding right? Thanks!



Style ID # (and/or)

#header {
display:none;
}

.headerimage {
height: 214px;

background-image: url("http://i1349.photobucket.com/albums/p746/oneesans/Untitled-1_zpsc0b24cd6.png") !important;

background-repeat: no-repeat !important;
background-attachment: scroll
!important;
background-position: center