diff --git a/src/styles/main.scss b/src/styles/main.scss
index a0833b6..d7fb912 100644
--- a/src/styles/main.scss
+++ b/src/styles/main.scss
@@ -14,8 +14,8 @@
 /*Modificacion basica de elementos*/
 body {
   max-width: 75rem;
-  margin: 0 auto;
-  padding: 0 1rem;
+  margin: 0 auto ;
+  padding: 0 1rem 1em 1em;
   font-family: sans-serif;
   color: var(--black);
   overflow-y: scroll;
@@ -229,20 +229,12 @@ ul.tabs li.tab.selected {
 }
 
 .pulsating {
-  animation: pulsating 8s infinite;
+  animation: pulsating 1s infinite alternate ease-in-out;
 
   @keyframes pulsating {
-    0% {
-      background-color: var(--white);
-    }
+    from { background-color: var(--white);}
 
-    50% {
-      background-color: var(--gray-1);
-    }
-
-    100% {
-      background-color: var(--white);
-    }
+    to { background-color: var(--gray-2);}
   }
 }