Adding 3 different buttons on to a semi-transparent area - html

Question

I need help to
How can I add two more image buttons inside the semi transparent area (<figcaption>) and all 3 buttons to be vertically centered and distributed equally inside the semi transparent area?
The button I've added seems to be semi-transparent (same as the <figcaption> opacity). I need the buttons to be opacity:1;?
This is the code:
<div class="container demo-2">
<ul class="grid cs-style-2">
<li>
<figure>
<gt_descA>Chair</gt_descA>
<gt_descC>$87.34</gt_descC>
<img src="imagez/designs/thumbs/0/01.jpg" alt="img02">
<figcaption>
<span class="hint hint--top hint--rounded" data-hint="Zoom Image"><img src="additional/buttons/bu_zoom.jpg"></img></span>
</figcaption>
</figure>
</li>
</ul>
</div>
CSS
.grid {
padding: 70px 20px 100px 20px;
max-width: 1300px;
margin: 0 auto;
list-style: none;
text-align: center;
}
.grid li {
display: inline-block;
width: 234px;
margin: 0;
padding: 20px;
text-align: left;
position: relative;
}
.grid figure {
margin: 0;
position: relative;
}
.grid figure img {
max-width: 100%;
display: block;
position: relative;
}
.grid figcaption {
position: absolute;
top: 0;
left: 0;
padding: 20px;
background: #000;
color: #ed4e6e;
opacity:0;
}
/*button*/
.grid figcaption a {
display: inline-block;
}
/* Caption Style*/
.cs-style-2 figure figcaption {
z-index: 10;
-webkit-transition: -webkit-transform 0.4s;
-moz-transition: -moz-transform 0.4s;
transition: transform 0.4s;
}
.no-touch .cs-style-2 figure:hover figcaption,
.cs-style-2 figure.cs-hover figcaption {
-webkit-transform: translateY(0px);
-moz-transform: translateY(0px);
-ms-transform: translateY(0px);
transform: translateY(0px);
opacity:0.6;
}
.cs-style-2 figcaption {
height: 24px;
width: 187px;
top: auto;
bottom: 0px;
}
.cs-style-2 figcaption a {
position: absolute;
right: 20px;
top: 30px;
}
#media screen and (max-width: 31.5em) {
.grid {
padding: 10px 10px 100px 10px;
}
.grid li {
width: 100%;
min-width: 234px;
}
}

Answer 1

You can add buttons, and to align them use
container {
text-align: center;
}
Or this:
container {
max-width: someval;
margin: 0 auto; // no vertical, auto horizontal
}
And the alpha filter (opacity) is added to child elements too! Try to setting value for them too; seperately..