Fehlender Wert: background: rgb(255,255,255); background: -moz-linear-gradient(top, rgba(255,255,255,1) 0%, rgba(255,255,255,1) 100%); background: -webkit-linear-gradient(top, rgba(255,255,255,1) 0%,rgba(255,255,255,1) 100%); background: linear-gradient(to bottom, rgba(255,255,255,1) 0%,rgba(255,255,255,1) 100%)