Few questions regarding the Chatbox & it's colors

I have a few questions regarding the chatbox nd it's colors.

My chat: http://prntscr.com/ki4up

1) How do I get rid of that dotted line? And make it a solid gray line?
2) Is there a way to change the timestamp to [Date, Time]?
3) Can I get rid of the options to use Bold, Italic, Strike, and Underline? Also, have a default text color?
***I want a universal color (white) and style to be used by all members in the chat. And also change the background color for the text input box to black or dark gray?
4) Can I hide the @ for staff members on the chat?
5) If you look closely, there is a purple underline under my name. How do I get rid of that?

I would really appreciate it if someone could answer and help me with these 5 questions/problems of mine with my chatbox design.

Thanks!

Code:

#chatbox_members {border-right:1px solid #c3c3c3;}


Code:

#chatbox_messenger_form .right #divbold,#chatbox_messenger_form .right #divitalic, #chatbox_messenger_form .right #divunderline, #chatbox_messenger_form .right #divstrike , #chatbox_messenger_form .right #divcolor{display:none;}

Code:

.msg span {
color: white !important;
}


Code:

#chatbox_members ul li a {
text-decoration: none;
}

working on the @ symbol now. If I forgot anything let me know

So far so good.

Now I need a code to make the text you type into the box black.
So as you're typing into the white box, black text appears into the box. But when you send it, it shows up as white text on the chat box. Can you do that?

Yes you can do that,

Code:

#message {color:#000;}

I am unable to find anything with CSS to get rid of that @. I tried :nth-child(1) , :first-child :first-of-type and none of these worked. only way I can think of is with jQuery/javascript kk

That code isn't working

it should. Try adding !important like so

Code:


#message{color:#000 !important;}

Thanks!

Now the last thing. How do I make the dotted line on the bottom (going left to right) solid?

#chatbox_footer {
border-top: 1px solid #c3c3c3;
}