/* JavaScript */ const slider = document.querySelector(".slider"); slider.addEventListener("input", () => { updateSlider(); }); const updateSlider = function () { const backgroundPercentage = ((slider.value - slider.min) / (slider.max - slider.min)) * 100; const backgroundColor = `linear-gradient(to right, var(--primary-color) 0%, var(--primary-color) ${backgroundPercentage}%, var(--success-light) ${backgroundPercentage}%, var(--success-light) 100%)`; slider.style.background = backgroundColor; }; updateSlider();