background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="6000" height="4500" viewBox="0 0 6000 4500"><defs><pattern id="random-text-pattern" x="0" y="0" width="1200" height="1200" patternUnits="userSpaceOnUse"><text x="60" y="120" font-family="Arial, sans-serif" font-size="31" fill="{{ fill_color }}" opacity="0.3" transform="rotate(15, 60, 120)">{{ background_text }}</text><text x="360" y="480" font-family="Arial, sans-serif" font-size="26" fill="{{ fill_color }}" opacity="0.25" transform="rotate(-10, 360, 480)">{{ background_text }}</text><text x="840" y="240" font-family="Arial, sans-serif" font-size="36" fill="{{ fill_color }}" opacity="0.35" transform="rotate(5, 840, 240)">{{ background_text }}</text><text x="120" y="840" font-family="Arial, sans-serif" font-size="29" fill="{{ fill_color }}" opacity="0.28" transform="rotate(-20, 120, 840)">{{ background_text }}</text><text x="720" y="960" font-family="Arial, sans-serif" font-size="34" fill="{{ fill_color }}" opacity="0.32" transform="rotate(25, 720, 960)">{{ background_text }}</text></pattern></defs><rect width="100%" height="100%" fill="url(%23random-text-pattern)"/></svg>');
background-repeat: no-repeat;
background-size: cover;
background-position: center center;
background-attachment: fixed;