title: Not able to click dropdown
body: <p>I am a new learner in selenium and try to click on a dropdown to populate list but it keeps on giving me runtime exception:</p>
  
  <blockquote>
    <p>Exception in thread "main" org.openqa.selenium.ElementNotVisibleException: 
      Element is not currently visible and so may not be interacted with )</p>
  </blockquote>
  
  <p>Please help. Below is my code that I am executing.</p>
  
  <pre><code>    WebDriver dr=new FirefoxDriver();
      dr.get("https://jqueryui.com/selectmenu/");
      dr.manage().window().maximize();
      dr.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
      dr.switchTo().frame(dr.findElement(By.className("demo-frame")));
      wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("speed-       menu"))).click();
  </code></pre>