fixed bad attributes in validator

opencv_details.html

@@ -21,7 +21,7 @@
         </ul>
     </details>
     <h2 align="center">OpenCV Details</h2>
-    <hr width="80%" align="center">
+    <hr width="800" align="center">
     <p align="center">
         <img src="./images/opencv.png" alt="OpenCV" height="150" align="top">
         as mentioned before i love when programs are able to <i>see</i> things <br>
@@ -33,7 +33,7 @@
         Additionally, I'm exploring Re-Identification (ReId) techniques,
         they are used for recognizing and tracking objects across different camera views or consecutive frames.
     </p>
-    <hr width="50%" align="center">
+    <hr width="500" align="center">
     <p>
         One of many projects I've worked on is <a href="https://github.com/OkunElya/ArucoNGP-MapCreator"
             target="_blank">ArucoNGP-MapCreator</a>.<br>