[GE2026] change speaker page css (#15866)

GE2026 change speaker page css

Author: deniger

content/events/2026-geneva/speakers.md

@@ -11,7 +11,7 @@ Description = "Speakers for DevOpsDays Geneva 2026"
     position: relative;
     overflow: hidden;
     width: 100%;
-    height: 2400px;
+    height: 900px;
     padding-top: 56.25%; /* 16:9 Aspect Ratio */
 }
 
@@ -29,4 +29,4 @@ Description = "Speakers for DevOpsDays Geneva 2026"
 
 <div class="iframe-container">
     <iframe class="responsive-iframe" src="https://devopsdays-geneva.ch/speakers.php" allowfullscreen></iframe>
-</div>
+</div>