Nearsoft\SeleniumClient\By::cssSelector PHP Method

    public static function cssSelector($selectorValue)
    {
        return new By("css selector", $selectorValue);
    }

 public function testDemo1()
 {
     //get url
     $this->_driver->get($this->_testUrl);
     sleep(4);
     //access text input
     $webElement = $this->_driver->findElement(By::id("txt1"));
     $webElement->clear();
     $webElement->sendKeys("Text sent 1");
     $this->assertEquals("Text sent 1", $webElement->getAttribute("value"));
     $webElement = $this->_driver->findElement(By::id("txt2"));
     $webElement->clear();
     $webElement->sendKeys("Text sent 2");
     $this->assertEquals("Text sent 2", $webElement->getAttribute("value"));
     //access listbox
     $selectElement = new SelectElement($this->_driver->findElement(By::id("sel1")));
     $selectElement->selectByValue("4");
     $this->assertTrue($selectElement->getElement()->findElement(By::xPath(".//option[@value = 4]"))->isSelected());
     //access checkbox
     $webElement = $this->_driver->findElement(By::cssSelector("html body table tbody tr td fieldset form p input#chk3"));
     $webElement->click();
     $this->assertTrue($webElement->isSelected());
     //access radio
     $webElement = $this->_driver->findElement(By::id("rd3"));
     $webElement->click();
     $this->assertTrue($webElement->isSelected());
     //access button
     $webElement = $this->_driver->findElement(By::id("btnSubmit"));
     $webElement->click();
     //access h2
     $webElement = $this->_driver->findElement(By::cssSelector("html body h2#h2FormReceptor"));
     $this->assertEquals("Form receptor", $webElement->getText());
     //navigation
     $this->_driver->get('http://www.nearsoft.com');
     $this->_driver->navigate()->refresh();
     $this->_driver->navigate()->back();
     $this->_driver->navigate()->forward();
     sleep(5);
 }