Oh, now we see what you mean. The height depends on the content you put. You can target the boxes and give them min-height
property if you want to.
For woocommerce that would be going to the woocommerce.css and on the line 299 add the min-height
property like:
.woocommerce ul.products li.product, .woocommerce-page ul.products li.product {
float: left;
margin: 0 3.49% 40px 0;
padding: 0 0 25px 0;
position: relative;
margin-left: 0;
background: url(../images/product_bg.png) bottom right no-repeat;
width: 31%;
min-height:600px;
}
As for the service boxes you can target them in dnd-shortcodes.css on line 2539
.dnd_service_box {
text-align: center;
margin-bottom: 40px;
background: #efefef;
padding: 30px 40px;
min-height:500px;
}
Have in mind however that if you have more content (that will go over the 500px or 600px in the case of your products), that the sizes of the boxes will change (they will be bigger then the specified minimum height).