diff --git a/server_files/views/equipe.php b/server_files/views/equipe.php
index 3a69a17..d69b553 100644
--- a/server_files/views/equipe.php
+++ b/server_files/views/equipe.php
@@ -1,45 +1,70 @@
 <?php require_once "header.php" ?>
 
-    <h2>Informations sur l'équipe</h2>
+    <div class="mt-4 mb-4">
+        <h1 class="display-4">Informations sur l'équipe</h1>
+    </div>
 
-    Nom de l'équipe : <?= $team->getName() ?><br/>
-    Trigramme : <?= $team->getTrigram() ?><br/>
-    Problème : <a href="/probleme/<?= $team->getProblem() ?>"><?= $team->getProblem() ?></a><br/>
-<?php
-if ($team->getEncadrantId() !== null) {
-	$encadrant = User::fromId($team->getEncadrantId());
-	$id = $encadrant->getId();
-	echo "Encadrant : <a href=\"$URL_BASE/informations/$id/" . $encadrant->getFirstName() . " " . $encadrant->getSurname() . "\">" . $encadrant->getFirstName() . " " . $encadrant->getSurname() . "</a><br />";
-}
-for ($i = 1; $i <= 5; ++$i) {
-	if ($team->getParticipants()[$i - 1] == NULL)
-		continue;
-	$participant = User::fromId($team->getParticipants()[$i - 1]);
-	$id = $participant->getId();
-	echo "Participant $i : <a href=\"$URL_BASE/informations/$id/" . $participant->getFirstName() . " " . $participant->getSurname() . "\">" . $participant->getFirstName() . " " . $participant->getSurname() . "</a><br />";
-}
-?>
-    Autorise Animath à diffuser les vidéos : <?= $team->allowPublish() ? "oui" : "non" ?>
+    <div class="alert alert-info">
+        <strong>Nom de l'équipe :</strong> <?= $team->getName() ?>
+    </div>
+    <div class="alert alert-info">
+        <strong>Trigramme :</strong> <?= $team->getTrigram() ?>
+    </div>
+    <div class="alert alert-info">
+        <strong>Problème :</strong> <a href="/probleme/<?= $team->getProblem() ?>"><?= $team->getProblem() ?></a>
+    </div>
+    <div class="alert alert-<?= $team->getValidationStatus() == ValidationStatus::VALIDATED ? "success" : ($team->getValidationStatus() == ValidationStatus::WAITING ? "warning" : "danger") ?>">
+        <strong>Validation de l'équipe
+            :</strong> <?= ValidationStatus::getTranslatedName($team->getValidationStatus()) ?>
+    </div>
+    <div class="alert alert-info">
+        <?php
+        if ($team->getEncadrantId() !== null) {
+            $encadrant = User::fromId($team->getEncadrantId());
+            $id = $encadrant->getId();
+            echo "<strong>Encadrant :</strong> <a href=\"$URL_BASE/informations/$id/" . $encadrant->getFirstName() . " " . $encadrant->getSurname() . "\">" . $encadrant->getFirstName() . " " . $encadrant->getSurname() . "</a><br />";
+        }
+        for ($i = 1; $i <= 5; ++$i) {
+            if ($team->getParticipants()[$i - 1] == NULL)
+                continue;
+            $participant = User::fromId($team->getParticipants()[$i - 1]);
+            $id = $participant->getId();
+            echo "<strong>Participant $i :</strong> <a href=\"$URL_BASE/informations/$id/" . $participant->getFirstName() . " " . $participant->getSurname() . "\">" . $participant->getFirstName() . " " . $participant->getSurname() . "</a><br />";
+        }
+        ?>
+    </div>
+    <div class="alert alert-info">
+        <strong>Autorise Animath à diffuser les vidéos :</strong> <?= $team->allowPublish() ? "oui" : "non" ?>
+    </div>
 
 <?php
 if ($_SESSION["role"] == Role::ADMIN) { ?>
-    <hr />
+    <hr/>
     <form method="POST">
-        <label for="other_teams">L'équipe va recevoir les questions des équipes suivantes (merci d'en sélectionner exactement 2) :</label>
-        <select id="other_teams" name="other_teams[]" multiple>
-            <?php
-            /** @var Team $other_team */
-			foreach ($other_teams as $other_team) {
-                if ($other_team->getId() == $team->getId())
-                    continue;
+        <div class="form-group row">
+            <div class="form-group col-md-12">
+                <label for="other_teams">L'équipe va recevoir les questions des équipes suivantes (merci d'en
+                    sélectionner
+                    exactement 2) :</label>
+                <select class="custom-select" id="other_teams" name="other_teams[]" multiple>
+                    <?php
+                    /** @var Team $other_team */
+                    foreach ($other_teams as $other_team) {
+                        if ($other_team->getId() == $team->getId())
+                            continue;
 
-                $team_name = $other_team->getName() . " (" . $other_team->getTrigram() . ")";
-                $team_id = $other_team->getId();
-                echo "<option value=\"$team_id\" " . (in_array($other_team->getId(), $team->getVideoTeamIds()) ? "selected" : "") . ">$team_name</option>\n";
-            }
-            ?>
-        </select>
-        <input type="submit" name="update_video_teams" value="Mettre à jour" />
+                        $team_name = $other_team->getName() . " (" . $other_team->getTrigram() . ")";
+                        $team_id = $other_team->getId();
+                        echo "<option value=\"$team_id\" " . (in_array($other_team->getId(), $team->getVideoTeamIds()) ? "selected" : "") . ">$team_name</option>\n";
+                    }
+                    ?>
+                </select>
+            </div>
+        </div>
+        <div class="form-group row">
+            <input type="submit" class="btn btn-secondary btn-lg btn-block" name="update_video_teams"
+                   value="Mettre à jour"/>
+        </div>
     </form>
 <?php } ?>
 
@@ -50,15 +75,16 @@ if ($_SESSION["role"] == Role::ADMIN) { ?>
 <?php printDocuments($documents) ?>
 
     <form method="POST">
-        <input type="submit" name="download_zip" value="Télécharger l'archive"/>
+        <input type="submit" class="btn btn-secondary btn-lg btn-block" name="download_zip"
+               value="Télécharger l'archive"/>
     </form>
 
 <?php if ($team->getValidationStatus() == ValidationStatus::WAITING && $_SESSION["role"] == Role::ADMIN) { ?>
-    <hr />
+    <hr/>
     <form method="POST">
-        <input type="submit" name="validate" value="Valider l'équipe"/>
+        <input type="submit" class="btn btn-secondary btn-lg btn-block" name="validate" value="Valider l'équipe"/>
     </form>
-	<?php
+    <?php
 }
 
 require_once "footer.php" ?>
\ No newline at end of file
diff --git a/server_files/views/header.php b/server_files/views/header.php
index 5067ade..34646e3 100644
--- a/server_files/views/header.php
+++ b/server_files/views/header.php
@@ -10,6 +10,14 @@
     <!--  Bootstrap  -->
     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
           integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
+
+    <style>
+        ul .deroule {
+            display: none;
+        }
+
+        li:hover ul.deroule {display:block;}
+    </style>
 </head>
 
 <body>
@@ -69,6 +77,15 @@
 						<?php } ?>
 					<?php } ?>
 					<?php if ($_SESSION["role"] == Role::ADMIN) { ?>
+                        <li>
+                            Liste des problèmes
+                            <ul class="deroule">
+                                <li><a href="/probleme/1">Problème 1</a></li>
+                                <li><a href="/probleme/2">Problème 2</a></li>
+                                <li><a href="/probleme/3">Problème 3</a></li>
+                                <li><a href="/probleme/4">Problème 4</a></li>
+                            </ul>
+                        </li>
                         <li class="nav-item active"><a class="nav-link" href="/ajouter-admin">
                                 Ajouter un administrateur</a>
                         </li>
diff --git a/server_files/views/probleme.php b/server_files/views/probleme.php
index e430f07..fe5dbd4 100644
--- a/server_files/views/probleme.php
+++ b/server_files/views/probleme.php
@@ -1,30 +1,26 @@
 <?php require_once "header.php" ?>
 
-<?php
-if ($has_error)
-	echo "<h2>Erreur : $error_message</h2>";
-?>
-
-<h2>Problème n°<?= $problem ?></h2>
-
+<div class="mt-4 mb-4">
+    <h2 class="display-3">Problème <?= $problem ?></h2>
+</div>
 
 <hr/>
 
 <h2>Équipes inscrites pour ce problème :</h2>
 
-<table style="border: 1px solid black; width: 100%;">
+<table class="table table-striped table-bordered table-hover">
     <thead>
     <tr>
-        <th style="border: 1px solid black; text-align: center">
+        <th scope="col">
             Équipe
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th scope="col">
             Trigramme
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th scope="col">
             Date d'inscription
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th scope="col">
             État de validation de l'inscription
         </th>
     </tr>
@@ -35,17 +31,17 @@ if ($has_error)
 	foreach ($teams as $team) {
 		?>
         <tr>
-            <td style="border: 1px solid black; text-align: center">
+            <th scope="row">
 				<?php
 				if (isset($_SESSION["role"]) && $_SESSION["role"] == Role::ADMIN)
 					echo "<a href=\"/equipe/" . $team->getTrigram() . "\">" . $team->getName() . "</a>";
 				else
 					echo $team->getName();
 				?>
-            </td>
-            <td style="border: 1px solid black; text-align: center"><?= $team->getTrigram() ?></td>
-            <td style="border: 1px solid black; text-align: center"><?= formatDate($team->getInscriptionDate()) ?></td>
-            <td style="border: 1px solid black; text-align: center"><?= ValidationStatus::getTranslatedName($team->getValidationStatus()) ?></td>
+            </th>
+            <td><?= $team->getTrigram() ?></td>
+            <td><?= formatDate($team->getInscriptionDate()) ?></td>
+            <td><?= ValidationStatus::getTranslatedName($team->getValidationStatus()) ?></td>
         </tr>
 		<?php
 	}
@@ -53,16 +49,16 @@ if ($has_error)
     </tbody>
     <tfoot>
     <tr>
-        <th style="border: 1px solid black; text-align: center">
+        <th>
             Équipe
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th>
             Trigramme
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th>
             Date d'inscription
         </th>
-        <th style="border: 1px solid black; text-align: center">
+        <th>
             État de validation de l'inscription
         </th>
     </tr>