Q:

IBM Worklight 6.1 - Disable orange outline highlight on focus is not working

I am developing a mobile app in worklight 6.1 with one textbox and a textarea. I need to remove the orange outline hightlight on focus in android devices so I have tried all the codes which is written in: Disable orange outline highlight on focus".
In IBM Worklight 6.0 this works:
textarea:focus, input:focus{
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0);    
    -webkit-user-modify: read-write-plaintext-only;
}

I have tried the same code with IBM Worklight 6.1, but it doesn't work.
This is my HTML code:
<div>
    <input type="text"/>
    <textarea>
    </textarea>
</div>

The hightlight appears for a fraction of seconds in 6.1.

After adding the below code which is the answer given by @Ilya am getting the same output:

A:

This is the working code. Tested in devices[Samsung S Duos, Sony Xperia M & Samsung Tab II] with IBM worklight 6.0 & IBM Worklight 6.1.
textarea:focus, input:focus, input,textarea{
    -webkit-tap-highlight-color: rgba(0,0,0,0) !important;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-modify: read-write-plaintext-only; 
    border: none !important;
    margin: none !important;
}

