fix: Intro

- Move style inside .body_intro
- Fix overlap of ids

source/code/intro.js

@@ -25,7 +25,7 @@ class UI {
 				msgNo: 'No agreement today.'
 			}
 		};
-		this.intro = document.getElementById('intro');
+		this.intro = document.getElementById('init');
 		this.agreement = this.steps.agreement.element;
 		this.hint = {
 			element: document.getElementById('hint'),
@@ -61,7 +61,7 @@ class UI {
 			} else {
 				reject('No intro available.');
 			}
-		})
+		});
 	}
 
 	showHint() {
@@ -100,7 +100,7 @@ class UI {
 			} else {
 				reject();
 			}
-		})
+		});
 	}
 
 	init() {