Python selenium phantom js

Having problem with Python Selenium and Phantom JS. Problem : setting driver to Phantom JS

<div class="ProfileTweet-action ProfileTweet-action--more js-more-ProfileTweet-actions">
  <div class="dropdown">
    <button class="ProfileTweet-actionButton u-textUserColorHover dropdown-toggle js-dropdown-toggle" type="button" aria-haspopup="true">
  
  </button>
    <div class="dropdown-menu is-autoCentered">
      <div class="js-first-tabstop" tabindex="0"></div>
      <div class="dropdown-caret">
        <div class="caret-outer"></div>
        <div class="caret-inner"></div>
      </div>
      <ul tabindex="-1" role="menu" aria-labelledby="menu-1" aria-hidden="false">
        <li class="js-actionDelete" role="presentation">
          <button type="button" class="dropdown-link" role="menuitem">Удалить  </button>
        </li>

      </ul>
      <div class="js-last-tabstop" tabindex="0"></div>
    </div>
  </div>

</div>

Actual problem is here ---- after clicking on this class

  ProfileTweet-action ProfileTweet-action--more js-more-ProfileTweet-actions

code below

 driver.find_element_by_css_selector("div.IconContainer").click()

is not doing the trick but when driver is set to Firefox it works as expected . Is there anything I am missing? Thanks