Prog by an CSSLocator locator

//CSSLocator : Finding an element by CSS , CSSLocator

package com.snapdeal;

import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class CSSLocator {
    public static void main(String[] args) {
        WebDriver driver = new FirefoxDriver();
        driver.get("https://www.irctc.co.in/eticketing/loginHome.jsf");
        driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
        driver.findElement(By.id("loginbutton")).click();
        //CSSLocator : Finding an element by CSS , CSSLocator
        driver.findElement(By.cssSelector("span.close")).click();
    }
}