How to slide{move} slider in Selenium WebDriver

Question

How to slide slider on horizontal progress bar URL: http://jqueryui.com/slider/ I tried to scroll the slider but it did not work for me. My code using Java is below:

Answer 1

I think the slide is use css style format to scroll so we change element's style

JavascriptExecutor js = (JavascriptExecutor) driver;

WebElement a = driver.findElement(By.xpath("//div[@id='slider-1']/a"));

js.executeScript("arguments[0].setAttribute('style', 'left: 30%;')",a);