diff --git a/css/style_projet.css b/css/style_projet.css
index 5f0384f..9a87fce 100644
--- a/css/style_projet.css
+++ b/css/style_projet.css
@@ -6,7 +6,8 @@
 }
 
 .picture_placeHolder {
-  width: 100%;
+  width: 15.5vw;
+  height: 15.5vh;
 }
 
 .video {
@@ -152,4 +153,8 @@
 
 .frequency-control input{
   width: 5vw;
+}
+
+.highlight{
+  background-color: red;
 }
\ No newline at end of file