I did it the following way.
1. measure the longest text in the block with the developer tools of the browser.
2. add the following css (height as you measured):
.lp-block {
height: 330px;
}
.lp-block a {
height: 330px;
width: 100%;
position: absolute;
z-index: 200;
}
.lp-block-content {
margin-top: 3em;
z-index: 100;
}
It workes (tested) in Opera 50, Google Chrome 63 and Firefox 57 🙂
The given url is under construction, but the result can be seen by the 20th of January.
Website: www.frauenfilmtage.at