diff --git a/public/css/tissue.css b/public/css/tissue.css
index a9520ab..e71b920 100644
--- a/public/css/tissue.css
+++ b/public/css/tissue.css
@@ -48,6 +48,11 @@
     margin-left: 16px;
 }
 
+.tis-global-count-graph {
+    height: 90px;
+    border-bottom: 1px solid rgba(0, 0, 0, .125);
+}
+
 @media (min-width: 992px) {
     .tis-sidebar-info {
         font-size: small;
diff --git a/resources/views/home.blade.php b/resources/views/home.blade.php
index 87854a9..6938868 100644
--- a/resources/views/home.blade.php
+++ b/resources/views/home.blade.php
@@ -45,7 +45,7 @@
         <div class="col-lg-8">
             @if (!empty($globalEjaculationCounts))
                 <h5>チェックインの動向</h5>
-                <div class="w-100 mb-3 position-relative" style="height: 70px;">
+                <div class="w-100 mb-4 position-relative tis-global-count-graph">
                     <canvas id="global-count-graph"></canvas>
                 </div>
             @endif