diff --git a/view/theme/diabook-aerith/style-network.css b/view/theme/diabook-aerith/style-network.css
index 3735ed66..f6c7bc69 100644
--- a/view/theme/diabook-aerith/style-network.css
+++ b/view/theme/diabook-aerith/style-network.css
@@ -1451,13 +1451,12 @@ transition: all 0.2s ease-in-out;
 }
 .wall-item-comment-wrapper textarea {
   height: 2.0em;
-  width: 93%;
+  width: 100%;
   font-size: 10px;
   color: #999999;
   border: 1px solid #DDD;
   padding: 0.3em;
   font-size: 14px;
-  margin-left: 20px;
 }
 .wall-item-comment-wrapper .comment-edit-text-full {
   font-size: 14px;
diff --git a/view/theme/diabook-aerith/style.css b/view/theme/diabook-aerith/style.css
index 90cb1d19..796af62e 100644
--- a/view/theme/diabook-aerith/style.css
+++ b/view/theme/diabook-aerith/style.css
@@ -568,8 +568,8 @@ header #banner #logo-text {
 }
 /* messages */
 #message-new {
-  background: #19aeff;
-  border: 1px solid #005c94;
+  background: #3465A4;
+  border: 1px solid #333;
   width: 150px;
 }
 #message-new a {
@@ -578,6 +578,7 @@ header #banner #logo-text {
   display: block;
   font-weight: bold;
   padding: 1em 0px;
+    text-decoration: none;
 }
 .mail-list-wrapper {
   background-color: #f6f7f8;
diff --git a/view/theme/diabook-blue/style-network.css b/view/theme/diabook-blue/style-network.css
index 0e779a08..5d16cde9 100644
--- a/view/theme/diabook-blue/style-network.css
+++ b/view/theme/diabook-blue/style-network.css
@@ -1409,13 +1409,12 @@ transition: all 0.2s ease-in-out;
 }
 .wall-item-comment-wrapper textarea {
   height: 2.0em;
-  width: 93%;
+  width: 100%;
   font-size: 10px;
   color: #999999;
   border: 1px solid #DDD;
   padding: 0.3em;
   font-size: 14px;
-  margin-left: 20px;
 }
 .wall-item-comment-wrapper .comment-edit-text-full {
   font-size: 14px;
diff --git a/view/theme/diabook-blue/style.css b/view/theme/diabook-blue/style.css
index e5b3ebfc..b4289dc0 100644
--- a/view/theme/diabook-blue/style.css
+++ b/view/theme/diabook-blue/style.css
@@ -553,8 +553,8 @@ header #banner #logo-text {
 }
 /* messages */
 #message-new {
-  background: #19aeff;
-  border: 1px solid #005c94;
+  background: #055580;
+  border: 1px solid #333;
   width: 150px;
 }
 #message-new a {
@@ -563,6 +563,7 @@ header #banner #logo-text {
   display: block;
   font-weight: bold;
   padding: 1em 0px;
+    text-decoration: none;
 }
 .mail-list-wrapper {
   background-color: #f6f7f8;
diff --git a/view/theme/diabook-red/style-network.css b/view/theme/diabook-red/style-network.css
index d90f9189..c7063860 100644
--- a/view/theme/diabook-red/style-network.css
+++ b/view/theme/diabook-red/style-network.css
@@ -1447,13 +1447,12 @@ transition: all 0.2s ease-in-out;
 }
 .wall-item-comment-wrapper textarea {
   height: 2.0em;
-  width: 93%;
+  width: 100%;
   font-size: 10px;
   color: #999999;
   border: 1px solid #DDD;
   padding: 0.3em;
   font-size: 14px;
-  margin-left: 20px;
 }
 .wall-item-comment-wrapper .comment-edit-text-full {
   font-size: 14px;
diff --git a/view/theme/diabook-red/style.css b/view/theme/diabook-red/style.css
index 4376eed0..578a5473 100644
--- a/view/theme/diabook-red/style.css
+++ b/view/theme/diabook-red/style.css
@@ -568,8 +568,8 @@ header #banner #logo-text {
 }
 /* messages */
 #message-new {
-  background: #19aeff;
-  border: 1px solid #005c94;
+  background: ;
+  border: 1px solid #333;
   width: 150px;
 }
 #message-new a {
@@ -578,6 +578,7 @@ header #banner #logo-text {
   display: block;
   font-weight: bold;
   padding: 1em 0px;
+  text-decoration: none;
 }
 .mail-list-wrapper {
   background-color: #f6f7f8;
diff --git a/view/theme/diabook/style.css b/view/theme/diabook/style.css
index de3ae215..97a26a41 100644
--- a/view/theme/diabook/style.css
+++ b/view/theme/diabook/style.css
@@ -564,6 +564,7 @@ header #banner #logo-text {
   display: block;
   font-weight: bold;
   padding: 1em 0px;
+  text-decoration: none;
 }
 .mail-list-wrapper {
   background-color: #f6f7f8;