html {background: none !important; margin: 0; padding: 0} 
body.login {background: transparent url('../img/menu_principal_bg.png') left top repeat  !important}
#login {width:330px;background: #F6F6F6; padding:15px;border: 1px solid #E5E5E5;-webkit-box-shadow: rgba(200, 200, 200, 0.7) 0 4px 10px -1px;box-shadow: rgba(200, 200, 200, 0.7) 0 4px 10px -1px;margin:25px auto;}
.login h1 a {padding:0; margin: 15px 0;width:329px; height: 107px;background:transparent url('../img/sprite.png') 0 0  !important}
.login form {margin-left:auto;padding: 0;font-weight: normal;background: none;border: 0;-webkit-box-shadow: none;box-shadow: none;}
.login #nav a, .login #backtoblog a {color:#7F8585 !important}
.login #nav, .login #backtoblog {clear: both;margin: 0 !important;padding: 0 !important;}