diff --git a/docs/site/layouts/partials/head/custom-head.html b/docs/site/layouts/partials/head/custom-head.html
index b44c1f2f..3112d96c 100644
--- a/docs/site/layouts/partials/head/custom-head.html
+++ b/docs/site/layouts/partials/head/custom-head.html
@@ -1,19 +1,29 @@
 <!-- Yandex.Metrika counter -->
-<script type="text/javascript" >
-   (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
-   m[i].l=1*new Date();
-   for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }}
-   k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
-   (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
+<script type='text/javascript'>
+  (function(m, e, t, r, i, k, a) {
+    m[i] = m[i] || function() {
+      (m[i].a = m[i].a || []).push(arguments);
+    };
+    m[i].l = 1 * new Date();
+    for (var j = 0; j < document.scripts.length; j++) {
+      if (document.scripts[j].src === r) {
+        return;
+      }
+    }
+    k = e.createElement(t), a = e.getElementsByTagName(t)[0], k.async = 1, k.src = r, a.parentNode.insertBefore(k, a);
+  })
+  (window, document, 'script', 'https://mc.yandex.ru/metrika/tag.js', 'ym');
 
-   ym(91185978, "init", {
-        clickmap:true,
-        trackLinks:true,
-        accurateTrackBounce:true,
-        webvisor:true
-   });
+  ym(91185978, 'init', {
+    clickmap: true,
+    trackLinks: true,
+    accurateTrackBounce: true,
+    webvisor: true,
+  });
 </script>
-<noscript><div><img src="https://mc.yandex.ru/watch/91185978" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
+<noscript>
+  <div><img src='https://mc.yandex.ru/watch/91185978' style='position:absolute; left:-9999px;' alt='' /></div>
+</noscript>
 <!-- /Yandex.Metrika counter -->
 
 <!-- Main page cards -->
@@ -26,5 +36,10 @@
     background-color: #fff;
     box-shadow: 0 0 1rem 0 rgba(0, 0, 0, 0.1);
   }
+
+  .pros-card:hover,
+  .pros-card:focus {
+    box-shadow: 0 0 1rem 0 #4aae2050;
+  }
 </style>
 <!-- /Main page cards -->