CSS Border Transition - Weird effect - css

Question

When I hover over the corner of the element I am getting a weird constant hover and hover out effect, how can I fix this?
HTML
<h2>
HELLO
</h2>
CSS
h2 {
position: absolute;
background: rgba(2,35,64,0.58);
width: calc(100% - 97px);
height: calc(100% - 88px);
line-height: calc(100% + 70px);
top: 0;
left: 0;
display: block;
font-size: 18px;
text-transform: uppercase;
text-align: center;
color: #FFF;
border: solid 20px rgba(2,35,64,0);
padding: 20px;
margin: 0px;
-webkit-transition: all 0.3s linear;
-moz-transition: all 0.3s linear;
-o-transition: all 0.3s linear;
transition: all 0.3s linear;
cursor: pointer;
}
h2:hover {
border: solid 5px #FFF;
padding: 10px;
margin: 25px;
background: transparent;
}
h2.woocommerce-loop-category__title:hover {
border: solid 5px #FFF;
padding: 10px;
margin: 25px;
background: transparent;
}
http://jsfiddle.net/xc7vjstn/1/

Answer 1

change the background from transparent to what ever color you want and you will see the content plus if you want to keep it online like small box then margin and padding is what you need to play with.
h2:hover {
border: solid 5px #FFF;
padding: 10px;
margin: 25px;
background: blue;
}

Answer 2

The margin in h2:hover is causing the behavior removing the margin fixed the problem
h2:hover {
border: solid 5px #FFF;
padding: 10px;
/*margin: 25px; */
background: transparent;
}

Answer 3

Here is my solution, please check the live example below:
h2 {
position: absolute;
background: rgba(2, 35, 64, 0.58);
width: calc(100% - 97px);
height: calc(100% - 88px);
line-height: calc(100% + 70px);
top: 0;
left: 0;
font-size: 18px;
text-transform: uppercase;
text-align: center;
color: #FFF;
border: solid 20px rgba(2, 35, 64, 0);
padding: 20px;
margin: 0 auto;
-webkit-transition: all 0.3s linear;
-moz-transition: all 0.3s linear;
-o-transition: all 0.3s linear;
transition: all 0.3s linear;
cursor: pointer;
}
h2:hover {
background: transparent;
-ms-transform: scale(0.9);
-webkit-transform: scale(0.9);
transform: scale(0.9);
}
<h2>
HELLO
</h2>