How to fix the height of the grid in Bootstrap 3 with standard means?

Question

JavaScript

Good afternoon.
There is a block

<div class="col-lg-4">
            <div class="panel panel-default">
                <div class="panel-heading">
                    <h3 class="panel-title">Заголовок #1</h3>
                </div>
                <ul class="list-group">
                    <li class="list-group-item">Ссылка #1</li>
                    <li class="list-group-item">Ссылка #2</li>
                    <li class="list-group-item">Ссылка #3</li>
                    <li class="list-group-item">Ссылка #4</li>
                    <li class="list-group-item">Ссылка #5</li>
                </ul>
            </div>
        </div>

There are 6 such blocks, divided into 2 rows of 3 blocks.
The problem is banal. Depending on the number of links in the first row, the second row shifts.
Is it possible to use STANDARD bootstrap tools to set, say, a height of 50% of the container for each row.
Something does not work to google a clear answer (maybe I'm looking for it wrong).

Answer 1

you are definitely not regular here
try this option
let delFrom = /&from=[^&]+/i;

Answer 2

In 3, no way, only if you set the height of the blocks hard.
This is fixed in bootstrap 4.
either brm.io/jquery-match-height