Update of all texts

styles/main.css

@@ -30,7 +30,7 @@ a {
     text-decoration:none;
 }
 
-.center {
+article .center {
     text-align:center;
 }
 
@@ -173,6 +173,18 @@ article p {
     font-family:'Commissioner', Helvetica;
 }
 
+article .intro {
+    width:75vw;
+    margin:auto;
+    margin-bottom:2rem;
+    line-height:1rem;
+}
+
+article .intro p {
+    margin-bottom:0.5rem;
+    margin-top:0;
+}
+
 article.main {
     width:55vw;
     text-align:justify;
@@ -397,15 +409,8 @@ article.explorer .gallery {
     text-align:center;
 }
 
-article.explorer p.intro {
-    width:75vw;
-    margin:auto;
-    margin-bottom:2rem;
-    text-align:justify;
-}
-
 @media only screen and (max-width:1200px) {
-    article.explorer p.intro {
+    article .intro {
         width:90vw;
     }
 }