How to create a responsive hover for my pictures? - html

Question

I want to make a responsive hover for my pictures but it's not working...
When I add the code to hover, my images lose responsiveness.
This is my html code:
<div class="col-xs-4 col-sm-4 col-md-4 col-lg-4">
<div class="thumbnail">
<div class="media">
<img class="media__image" src="img/06_team.png" alt="">
<div class="media__body">
<h2>asfafs</h2>
<p>asfkasf</p>
</div>
</div>
</div>
</div>
And this is my CSS:
.media {
display: inline-block;
position: relative;
vertical-align: top;
}
.media__image { display: block; }
.media__body {
background: rgba(41, 128, 185, 0.7);
bottom: 0;
color: white;
font-size: 1em;
left: 0;
opacity: 0;
overflow: hidden;
padding: 3.75em 3em;
position: absolute;
text-align: center;
top: 0;
right: 0;
-webkit-transition: 0.6s;
transition: 0.6s;
}
.media__body:hover { opacity: 1; }
.media__body:after,
.media__body:before {
border: 1px solid rgba(255, 255, 255, 0.7);
bottom: 1em;
content: '';
left: 1em;
opacity: 0;
position: absolute;
right: 1em;
top: 1em;
-webkit-transform: scale(1.5);
-ms-transform: scale(1.5);
transform: scale(1.5);
-webkit-transition: 0.6s 0.2s;
transition: 0.6s 0.2s;
}
.media__body:before {
border-bottom: none;
border-top: none;
left: 2em;
right: 2em;
}
.media__body:after {
border-left: none;
border-right: none;
bottom: 2em;
top: 2em;
}
.media__body:hover:after,
.media__body:hover:before {
-webkit-transform: scale(1);
-ms-transform: scale(1);
transform: scale(1);
opacity: 1;
}
.media__body h2 { margin-top: 0; }
.media__body p { margin-bottom: 1.5em; }
Please help me