diff --git a/package-lock.json b/package-lock.json
index 0cfd25e..f2cef88 100644
Binary files a/package-lock.json and b/package-lock.json differ
diff --git a/package.json b/package.json
index 7033301..f7aec5d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "simplify-fractions",
-    "version": "1.2.9",
+    "version": "1.2.10",
     "description": "Simple web tool for simplifying fractions",
     "author": "Florine W. Dekker",
     "browser": "dist/bundle.js",
@@ -16,7 +16,7 @@
         "deploy": "grunt deploy"
     },
     "dependencies": {
-        "katex": "^0.15.2"
+        "katex": "^0.16.3"
     },
     "devDependencies": {
         "css-loader": "^6.7.2",
diff --git a/src/main/index.html b/src/main/index.html
index c72da1c..1e2add5 100644
--- a/src/main/index.html
+++ b/src/main/index.html
@@ -8,6 +8,8 @@
     <meta name="description" content="Simplify fractions." />
     <meta name="theme-color" content="#0033cc" />
 
+    <meta name="fwd:auto:show-main" />
+    <meta name="fwd:auto:autofocus" />
     <meta name="fwd:nav:target" content="#nav" />
     <meta name="fwd:nav:highlight-path" content="/Tools/Simplify Fractions/" />
     <meta name="fwd:footer:target" content="#footer" />
diff --git a/src/main/js/main.js b/src/main/js/main.js
index 8479c9d..573b158 100644
--- a/src/main/js/main.js
+++ b/src/main/js/main.js
@@ -1,7 +1,7 @@
 // noinspection JSUnresolvedVariable
 const {$, doAfterLoad} = window.fwdekker;
 // noinspection JSUnresolvedVariable
-const {clearFormValidity, showInputInvalid, showInputValid} = window.fwdekker.validation;
+const {clearFormValidity, showInputInvalid} = window.fwdekker.validation;
 
 import katex from "katex";
 import "katex/dist/katex.min.css";
@@ -102,11 +102,6 @@ class Fraction {
 }
 
 
-doAfterLoad(() => {
-    $("main").classList.remove("hidden");
-    $("[autofocus]").focus();
-});
-
 doAfterLoad(() => {
     const numeratorInput = $("#numerator");
     const denominatorInput = $("#denominator");
@@ -129,8 +124,6 @@ doAfterLoad(() => {
         } else if (!isInt(numerator)) {
             isValid = false;
             showInputInvalid(numeratorInput, "Enter an integer.");
-        } else {
-            showInputValid(numeratorInput);
         }
 
         if (denominator.trim() === "") {
@@ -141,8 +134,6 @@ doAfterLoad(() => {
         } else if (+denominator === 0) {
             isValid = false;
             showInputInvalid(denominatorInput, "Enter a number other than zero.");
-        } else {
-            showInputValid(denominatorInput);
         }
 
         return isValid;