fix: prevent form reset on Enter and improve error message styling

package.json

@@ -10,6 +10,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@emotion/react": "^11.14.0",
+    "@emotion/styled": "^11.14.0",
+    "@mui/icons-material": "^7.1.0",
+    "@mui/material": "^7.1.0",
     "react": "^19.1.0",
     "react-dom": "^19.1.0"
   },

src/App.css

@@ -1,42 +1,108 @@
-#root {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
-  text-align: center;
+* {
+  padding: 0;
+  margin: 0;
+  box-sizing: border-box;
+}
+html {
+  font-family: "Montserrat", sans-serif;
+}
+body {
+  background: #eee;
+  background-image: url("https://www.transparenttextures.com/patterns/cubes.png");
+  padding: 0 16px;
 }
 
-.logo {
-  height: 6em;
-  padding: 1.5em;
-  will-change: filter;
-  transition: filter 300ms;
+header {
+  background-color: #f5ba13;
+  margin: auto -16px;
+  padding: 16px 32px;
+  box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.3);
 }
-.logo:hover {
-  filter: drop-shadow(0 0 2em #646cffaa);
+
+header h1 {
+  color: #fff;
+  font-family: "McLaren", cursive;
+  font-weight: 200;
 }
-.logo.react:hover {
-  filter: drop-shadow(0 0 2em #61dafbaa);
+
+
+.note {
+  background: #fff;
+  border-radius: 7px;
+  box-shadow: 0 2px 5px #ccc;
+  padding: 10px;
+  width: 240px;
+  margin: 16px;
+  float: left;
+}
+.note h1 {
+  font-size: 1.1em;
+  margin-bottom: 6px;
+}
+.note p {
+  font-size: 1.1em;
+  margin-bottom: 10px;
+  white-space: pre-wrap;
+  word-wrap: break-word;
 }
 
-@keyframes logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
+.note button {
+  position: relative;
+  float: right;
+  margin-right: 10px;
+  color: #f5ba13;
+  border: none;
+  width: 36px;
+  height: 36px;
+  cursor: pointer;
+  outline: none;
+  background: none;
 }
 
-@media (prefers-reduced-motion: no-preference) {
-  a:nth-of-type(2) .logo {
-    animation: logo-spin infinite 20s linear;
-  }
+form.create-note {
+  position: relative;
+  width: 480px;
+  margin: 30px auto 20px auto;
+  background: #fff;
+  padding: 15px;
+  border-radius: 7px;
+  box-shadow: 0 1px 5px rgb(138, 137, 137);
+}
+form.create-note input,
+form.create-note textarea {
+  width: 100%;
+  border: none;
+  padding: 4px;
+  outline: none;
+  font-size: 1.2em;
+  font-family: inherit;
+  resize: none;
+}
+form.create-note button {
+  position: absolute;
+  right: 18px;
+  bottom: -18px;
+  background: #f5ba13;
+  color: #fff;
+  border: none;
+  border-radius: 50%;
+  width: 36px;
+  height: 36px;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
+  cursor: pointer;
+  outline: none;
 }
 
-.card {
-  padding: 2em;
+.alert {
+  display: block;
 }
 
-.read-the-docs {
-  color: #888;
+.error {
+  background: red;
+  color: white;
+  margin: 20px auto;
+  padding: 10px;
+  font-weight: 700;
+  width: 50%;
+  border-radius: 5px;
 }

src/App.jsx

@@ -1,12 +1,33 @@
-import './App.css'
+import { useState } from "react";
+import "./App.css";
+import Note from "./components/Note";
+import Header from "./components/Header";
+import CreateNote from "./components/CreateNote";
 
 function App() {
+  const [notes, setNotes] = useState([]);
+
+  const deleteNote = itemToDeleteId => {
+    setNotes(prevNotes => {
+      return prevNotes.filter(noteItem => {
+        return itemToDeleteId !== noteItem.id;
+      });
+    });
+  };
+
+  const addNote = newNote => {
+    setNotes([...notes, newNote]);
+  };
 
   return (
     <>
-     notes keeper
+      <Header />
+      <CreateNote addNote={addNote} />
+      {notes.map(noteItem => (
+        <Note key={noteItem.id} noteItem={noteItem} deleteNote={deleteNote} />
+      ))}
     </>
-  )
+  );
 }
 
-export default App
+export default App;

src/components/CreateNote.jsx

@@ -0,0 +1,64 @@
+import React, { useState } from "react";
+import AddIcon from "@mui/icons-material/Add";
+import Zoom from "@mui/material/Zoom";
+import Fab from "@mui/material/Fab";
+import Fade from "@mui/material/Fade";
+
+const CreateNote = ({ addNote }) => {
+  const [isExpanded, setIsExpanded] = useState(false);
+  const [newNote, setNewNote] = useState({ title: "", content: "" });
+  const [errorMessage, setErrorMessage] = useState("");
+
+  const submitNote = e => {
+    if (!newNote.title || !newNote.content) {
+      setErrorMessage("Please fill in all fields");
+    } else {
+      addNote({ ...newNote, id: new Date() });
+      setNewNote({ title: "", content: "" });
+      setIsExpanded(false);
+      setErrorMessage("");
+    }
+    e.preventDefault();
+  };
+
+  const handleChange = e => {
+    const { name, value } = e.target;
+    setNewNote({ ...newNote, [name]: value });
+  };
+
+  return (
+    <div className="create-area" onSubmit={submitNote}>
+      <form className="create-note">
+        {isExpanded && (
+          <input
+            className="title"
+            type="text"
+            name="title"
+            value={newNote.title}
+            onChange={handleChange}
+            placeholder="Title"
+          />
+        )}
+        <textarea
+          className="textarea"
+          name="content"
+          value={newNote.content}
+          onChange={handleChange}
+          onClick={() => setIsExpanded(true)}
+          placeholder="Take a note..."
+          rows={isExpanded ? 3 : 1}
+        />
+        <Zoom in={isExpanded}>
+          <Fab type="submit">
+            <AddIcon />
+          </Fab>
+        </Zoom>
+      </form>
+      <Fade in={errorMessage}>
+        <p className="error">{errorMessage}</p>
+      </Fade>
+    </div>
+  );
+};
+
+export default CreateNote;

src/components/Header.jsx

@@ -0,0 +1,14 @@
+import React from "react";
+import NoteIcon from "@mui/icons-material/Note";
+
+const Header = () => {
+  return (
+    <header>
+      <h1>
+        <NoteIcon /> Keeper
+      </h1>
+    </header>
+  );
+};
+
+export default Header;

src/components/Note.jsx

@@ -0,0 +1,16 @@
+import React from "react";
+import DeleteIcon from "@mui/icons-material/Delete";
+
+const Note = ({ noteItem, deleteNote }) => {
+  return (
+    <div className="note">
+      <h1>{noteItem.title}</h1>
+      <p>{noteItem.content}</p>
+      <button onClick={() => deleteNote(noteItem.id)}>
+        <DeleteIcon />
+      </button>
+    </div>
+  );
+};
+
+export default Note;

src/index.css

@@ -1,68 +0,0 @@
-:root {
-  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
-  line-height: 1.5;
-  font-weight: 400;
-
-  color-scheme: light dark;
-  color: rgba(255, 255, 255, 0.87);
-  background-color: #242424;
-
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-a {
-  font-weight: 500;
-  color: #646cff;
-  text-decoration: inherit;
-}
-a:hover {
-  color: #535bf2;
-}
-
-body {
-  margin: 0;
-  display: flex;
-  place-items: center;
-  min-width: 320px;
-  min-height: 100vh;
-}
-
-h1 {
-  font-size: 3.2em;
-  line-height: 1.1;
-}
-
-button {
-  border-radius: 8px;
-  border: 1px solid transparent;
-  padding: 0.6em 1.2em;
-  font-size: 1em;
-  font-weight: 500;
-  font-family: inherit;
-  background-color: #1a1a1a;
-  cursor: pointer;
-  transition: border-color 0.25s;
-}
-button:hover {
-  border-color: #646cff;
-}
-button:focus,
-button:focus-visible {
-  outline: 4px auto -webkit-focus-ring-color;
-}
-
-@media (prefers-color-scheme: light) {
-  :root {
-    color: #213547;
-    background-color: #ffffff;
-  }
-  a:hover {
-    color: #747bff;
-  }
-  button {
-    background-color: #f9f9f9;
-  }
-}

src/main.jsx

@@ -1,10 +1,9 @@
-import { StrictMode } from 'react'
-import { createRoot } from 'react-dom/client'
-import './index.css'
-import App from './App.jsx'
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import App from "./App.jsx";
 
-createRoot(document.getElementById('root')).render(
+createRoot(document.getElementById("root")).render(
   <StrictMode>
     <App />
-  </StrictMode>,
-)
+  </StrictMode>
+);