<!DOCTYPE html>
<html>
<head>
<style>
      #content {
        background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAABhJREFUeF4FwTEBAAAAgjD7FzESWfjYdgwEoAJ4lTsaxgAAAABJRU5ErkJggg==);
        background-repeat: repeat-y;

        background-color: green;

        height: 90px;
      }
</style>
</head>
<body>
<div id="content"></div>
</body></html>