Format Document and remove redundant style

styles.css

@@ -28,15 +28,15 @@ body.home {
 }
 
 header {
-  position: relative;
+    position: relative;
 }
 
 #hero {
-  position: absolute;
-  bottom: calc(100% + 1rem);
-  font-size: 4rem;
-  display: flex;
-  align-items: baseline;
+    position: absolute;
+    bottom: calc(100% + 1rem);
+    font-size: 4rem;
+    display: flex;
+    align-items: baseline;
 }
 
 #hero h1 {
@@ -44,12 +44,8 @@ header {
 }
 
 body:not(.home) #hero {
-  opacity: 0;
-  pointer-events: none;
-}
-
-#hero h1 {
-    margin: 0;
+    opacity: 0;
+    pointer-events: none;
 }
 
 /* App */
@@ -184,7 +180,8 @@ body:not(.homeCommitted) .birdSoundCredit {
     opacity: 0;
     position: absolute;
     top: 15px;
-    left: 20px; /* Offset */
+    left: 20px;
+    /* Offset */
     animation: pop 0.8s ease-out var(--delay);
     pointer-events: none;
 }
@@ -194,9 +191,19 @@ body:not(.homeCommitted) .birdSoundCredit {
 }
 
 @keyframes pop {
-    0% {opacity: 0; transform: rotate(var(--angle)) translateY(var(--distance))}
-    50% {opacity: 1; }
-    100% {opacity: 0; transform: rotate(var(--angle)) translateY(calc(var(--distance) - 40px));}
+    0% {
+        opacity: 0;
+        transform: rotate(var(--angle)) translateY(var(--distance))
+    }
+
+    50% {
+        opacity: 1;
+    }
+
+    100% {
+        opacity: 0;
+        transform: rotate(var(--angle)) translateY(calc(var(--distance) - 40px));
+    }
 }
 
 #birdButton {