diff --git a/app/javascript/stylesheets/application/blocks/form/_form-item-block.sass b/app/javascript/stylesheets/application/blocks/form/_form-item-block.sass
index 7a3e38226fa..e33d9fd6826 100644
--- a/app/javascript/stylesheets/application/blocks/form/_form-item-block.sass
+++ b/app/javascript/stylesheets/application/blocks/form/_form-item-block.sass
@@ -27,7 +27,7 @@
   background-color: var(--base)
 
 .form-item-block__title
-  +text-block(.8125rem 1.5, block 600)
+  +text-block(.8125rem 1.4, block 600)
 
 .form-item-block__item
   &:not(:last-child)
diff --git a/app/javascript/stylesheets/application/blocks/practice/_categories.sass b/app/javascript/stylesheets/application/blocks/practice/_categories.sass
index d2a29f1abc1..27279abe917 100644
--- a/app/javascript/stylesheets/application/blocks/practice/_categories.sass
+++ b/app/javascript/stylesheets/application/blocks/practice/_categories.sass
@@ -9,7 +9,7 @@
       margin-bottom: 2rem
 
 .categories-item__title
-  +text-block(1.5rem 1.5, 700)
+  +text-block(1.5rem 1.4, 700)
   color: var(--main-text)
   position: relative
   +media-breakpoint-down(sm)
diff --git a/app/javascript/stylesheets/application/blocks/practice/_category-practices-item.sass b/app/javascript/stylesheets/application/blocks/practice/_category-practices-item.sass
index 7257c93cb8c..8d7167b025b 100644
--- a/app/javascript/stylesheets/application/blocks/practice/_category-practices-item.sass
+++ b/app/javascript/stylesheets/application/blocks/practice/_category-practices-item.sass
@@ -43,7 +43,7 @@
     margin-bottom: .5rem
 
 .category-practices-item__title-link
-  +text-block(.875rem 1.5, flex)
+  +text-block(.875rem 1.4, flex)
   color: var(--default-text)
   align-items: center
   min-height: 1.875rem
diff --git a/app/javascript/stylesheets/atoms/_a-button.sass b/app/javascript/stylesheets/atoms/_a-button.sass
index d0f0fc7a01c..ba386161643 100644
--- a/app/javascript/stylesheets/atoms/_a-button.sass
+++ b/app/javascript/stylesheets/atoms/_a-button.sass
@@ -77,7 +77,7 @@
     +button-size(.75rem, 1.25, 2rem)
   &.is-md,
   &.is-md input[type="submit"]
-    +button-size(.8125rem, 1.5, 2.25rem)
+    +button-size(.8125rem, 1.4, 2.25rem)
   &.is-lg,
   &.is-lg input[type="submit"]
     +button-size(1rem, 1, 2.75rem)
diff --git a/app/javascript/stylesheets/atoms/_a-meta.sass b/app/javascript/stylesheets/atoms/_a-meta.sass
index 744800e138e..cce71ca97a8 100644
--- a/app/javascript/stylesheets/atoms/_a-meta.sass
+++ b/app/javascript/stylesheets/atoms/_a-meta.sass
@@ -1,5 +1,5 @@
 .a-meta
-  +text-block(1em 1.5, flex)
+  +text-block(1em 1.4, flex)
   color: var(--muted-text)
   align-items: center
   flex-wrap: wrap
diff --git a/app/javascript/stylesheets/not-logged-in/_completion.sass b/app/javascript/stylesheets/not-logged-in/_completion.sass
index 293bd6b645b..7ba3ac5fb6f 100644
--- a/app/javascript/stylesheets/not-logged-in/_completion.sass
+++ b/app/javascript/stylesheets/not-logged-in/_completion.sass
@@ -2,7 +2,7 @@
   padding-block: 4rem 2rem
 
 .completion__title
-  +text-block(1em 1.5, 800 center)
+  +text-block(1em 1.4, 800 center)
   color: var(--reversal-text)
   font-family: var(--sans-serif)
   +media-breakpoint-up(md)
diff --git a/app/javascript/stylesheets/not-logged-in/_unauthorized-header.sass b/app/javascript/stylesheets/not-logged-in/_unauthorized-header.sass
index 8fc475b8473..6de15851e2a 100644
--- a/app/javascript/stylesheets/not-logged-in/_unauthorized-header.sass
+++ b/app/javascript/stylesheets/not-logged-in/_unauthorized-header.sass
@@ -9,7 +9,7 @@
     margin-bottom: .5rem
 
 .unauthorized-header__title
-  +text-block(1em 1.5, 800 center)
+  +text-block(1em 1.4, 800 center)
   color: var(--reversal-text)
   font-family: var(--sans-serif)
   +media-breakpoint-up(md)
diff --git a/app/javascript/stylesheets/shared/blocks/card/_congrats-card-body.sass b/app/javascript/stylesheets/shared/blocks/card/_congrats-card-body.sass
index 93a744b95da..a99ed5cf4a9 100644
--- a/app/javascript/stylesheets/shared/blocks/card/_congrats-card-body.sass
+++ b/app/javascript/stylesheets/shared/blocks/card/_congrats-card-body.sass
@@ -1,5 +1,5 @@
 .congrats-card-body__title
-  +text-block(1.5rem 1.5, 700)
+  +text-block(1.5rem 1.4, 700)
   +media-breakpoint-up(md)
     font-size: 1.5rem
   +media-breakpoint-down(sm)
diff --git a/app/javascript/textarea-initializer.js b/app/javascript/textarea-initializer.js
index ec18649db7e..479057707c3 100644
--- a/app/javascript/textarea-initializer.js
+++ b/app/javascript/textarea-initializer.js
@@ -57,8 +57,8 @@ export default class {
         responseKey: 'url',
         csrfToken: CSRF.getToken(),
         placeholder: '%filenameをアップロード中...',
-        uploadImageTag:
-          '<img src=%url width="100" height="100" loading="lazy" decoding="async" alt="%filename">\n',
+        //uploadImageTag:
+        //  '<img src=%url width="100" height="100" loading="lazy" decoding="async" alt="%filename">\n',
         afterPreview: () => {
           autosize.update(textarea)