CSS Code Help Needed - html

Question

I'm looking to find out how to add another box inside my box which would be faded to act as a title bar for that specific box (If that makes sense)!
So basically, in the SOCIALBOX I'm looking to get a sub-faded bar at the top inside which would act as a title bar.
After a few comments of people saying they're not sure what I mean, I created a quick image in photoshop to act as some reference point.
Code Snippet:
body {
background: url("../images/backgroundimage.jpg") repeat 0 0;
}
/* CSS MENU BAR CODE GOES HERE */
#menubar {
width: 98.5%;
height: 40px;
background-color: #000000;
position: fixed;
border: 2px solid #ffffff;
}
.inside_text {
color: #FFFFFF;
float: right;
margin: 11px 7px 0 0;
}
.inside_text2 {
color: #FFFFFF;
float: left;
margin: 11px 0 0 7px;
}
/* CSS SOCIALBOX (RIGHT) GOES HERE */
#socialbox {
width: 40%;
height: 40%;
position: relative;
float: right;
margin: 0 8px 0 0;
background-color: #000000;
border: 2px solid #126b72;
}
<div id="menubar">
<div class="inside_text">
PLACEHOLDER TEXT
</div>
<div class="inside_text2">
PLACEHOLDER TEXT
</div>
</div>
<br />
<br />
<br />
<div id="socialbox">
</div>

Answer 1

So you are asking for a faded line within SOCIALBOX div, to serve as underline for a title?
If thats correct create another class
.title-bar
{
border-bottom:3px;
solid black;
opacity:0.3;
}
position with margin-left & margin-top values inside that class based on where you want it within SOCIALBOX.
for example:
.title-bar
{
border-bottom:3px;
solid black;
opacity:0.3;
margin-left:50px;
margin-top:30px;
float:left;
}
create a:
<div class="title-bar"></div>
and place that inside
<div id="socialbox"></div>
BTW make it a habit to use float:left when positioning divs with CSS, try to avoid position:absolute or fixed, unless absolutely necessary. It just comes out cleaner this way.