diff --git a/public/home/chapters/00_intro.html b/public/home/chapters/00_intro.html
index d3a5f68b2baca1ec65063f58c593d31b84364dbe..aa4e30da4bb0f4e581299857fcb1501cace4a760 100644
--- a/public/home/chapters/00_intro.html
+++ b/public/home/chapters/00_intro.html
@@ -21,7 +21,8 @@
             rgb(255,255,255);
             background: linear-gradient(180deg, rgba(255,255,255,1) 0%,rgba(255,255,255,1) 60%, rgba(255,255,255,0)
             100%);">
-            <h1 style="width:100%;"><span style="text-align:left;"><a href="../index.html">&bullet;</a></span>
+            <h1 style="width:100%;font-size:2.5rem; line-height:1.2; margin-top:0;">
+                <span style="text-align:left;"><a href="../index.html">&bullet;</a></span>
                 <span style="text-align:right; font-size: 0.7em; float:right;margin-top: 0.3em; margin-right:1em;"
                     class="Ch_header">INTRO</span>
             </h1>
@@ -32,7 +33,7 @@
             <!--<div class="chapter">
                 <h3>INTRO</h3>
             </div>-->
-            <div class="row">
+            <div class="row chapter">
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
                 <div class="col-sm-6 p-6 ">
@@ -124,7 +125,7 @@
             </div>
 
 
-            <div class="row">
+            <div class="row chapter">
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
                 <div class="col-sm-6 p-6 ">
@@ -214,7 +215,7 @@
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
             </div>
-            <div class="row">
+            <div class="row chapter">
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
                 <div class="col-sm-6 p-6 ">
@@ -311,7 +312,7 @@
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
             </div>
-            <div class="row">
+            <div class="row chapter">
                 <!-- <div class="col-sm-1 p-1" style="height:0px;padding-top:0px !important;padding-bottom:0px !important;">
                 </div> -->
                 <div class="col-sm-6 p-6 ">
@@ -414,7 +415,7 @@
 
                 </div>
             </div>
-            <div class="row">
+            <div class="row chapter">
                 <div class="col-sm-6 p-6 ">
                     
                 </div>