Question: This is my [website](http://rupshop.com). It is built with Magento. I want to reduce the left side menu height from 463px to 400px. I tested via Firebug to change the value in the theme-pink.css file. But after editing, when I save the value and open the file again its still unchanged. Did it use any JavaScript script for validating or something else? If so, how can I change this? Please suggest a better option. 

```
.cms-index-index .header-v0 .ver-megamenu-header .sm_megamenu_wrapper_vertical_menu {
  display: block;
  min-height: 463px;

```

Answer: 
The emulator won't open unless you start a session. Clicking Play on Appium simply starts the Appium server. To start a session the simplest way, just click the inspector button (the magnifying glass).
You can refer to the below mentioned link for detailed instructions for running appium on windows machine:
<http://appium.io/slate/en/v1.1.0/?ruby#running-appium-on-windows>