#logo, #header_right { display: none; }

#header {margin-bottom: 5px;display: flex; justify-content: center}

#header_left {}

#eventref {
     width: 100px;
     height: 100px;
     background: url("http://lvo.org.uk/wp-content/uploads/LVO-logo-1.jpg") center top no-repeat;
     background-size: contain;
     overflow: hidden;
     display: block;
     margin-left: auto;
     margin-right: auto;
}

#eventref span { display: none; }