If you want a card layout for the individual templates, you can add some custom-css to your wiki.

Custom page templates selection

Customized page templates selection
Customized page templates selection

Simply add the following css information to your global style sheet MediaWiki:Common.css (admin permissions required):

/** Customized page templates selection **/
.bs-pt-sect {
    margin-top:1em
}
.bs-pt-subsect h3 {
    margin:0 0.8em;
}
.bs-pt-items {
    margin-left: 0;
    display: flex;
    flex-flow: row wrap;
    position: relative;
}
.bs-pt-item {
    position: relative;
    word-wrap: break-word;
    background-color: #e9e9ee;
    margin: 1.16%;
    width: 31%;
    border-radius: 5px;
    padding:20px 12pt
}
.pt-desc  {
    margin-left:1.1em
}
@media only screen and (max-width: 576px) {
 .bs-pt-item  {
    width:100%}
}




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