React Input Tags Component

Simple React Component

src/App.js

import React from "react";

const App = () => {
  const [tags, setTags] = React.useState([]);
  console.log(tags);
  let tagInput
  const removeTag = (i) => {
    const newTags = [...tags];
    newTags.splice(i, 1);
    // Call the defined function setTags which will replace tags with the new value.
    setTags(newTags);
  };

  const inputKeyDown = (e) => {
    const val = e.target.value;
    if (e.key === "Enter" && val) {
      if (tags.find((tag) => tag.toLowerCase() === val.toLowerCase())) {
        return;
      }
      setTags([...tags, val]);
      tagInput.value = null;
    } else if (e.key === "Backspace" && !val) {
      removeTag(tags.length - 1);
    }
  };
  return (
    <div className="input-tag">
      <ul className="input-tag__tags">
        {tags.map((tag, i) => (
          <li key={tag}>
            {tag}
            <button
              type="button"
              onClick={() => {
                removeTag(i);
              }}
            >
              delete
            </button>
          </li>
        ))}
        <li className="input-tag__tags__input">
          <input
            type="text"
            onKeyDown={inputKeyDown}
            ref={(c) => {
              tagInput = c;
            }}
          />
        </li>
      </ul>
    </div>
  );
};

export default App;

*src/index.js

import React from "react";
import ReactDOM from "react-dom";
import App from './App'

ReactDOM.render(
  <div>
     <App />
  </div>,
  document.getElementById('root')
);

src/index.css

* {
  font-family: sans-serif;
  font-size: 17px;
}

body {
  background: #f2f2f2;
  padding: 20px;
}

.input-tag {
  background: white;
  border: 1px solid #d6d6d6;
  border-radius: 2px;
  display: flex;
  flex-wrap: wrap;
  padding: 5px 5px 0;
}

.input-tag input {
  border: none;
  width: 100%;
}

.input-tag__tags {
  display: inline-flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  width: 100%;
}

.input-tag__tags li {
  align-items: center;
  background: #85A3BF;
  border-radius: 2px;
  color: white;
  display: flex;
  font-weight: 300;
  list-style: none;
  margin-bottom: 5px;
  margin-right: 5px;
  padding: 5px 10px;
}

.input-tag__tags li button {
  align-items: center;
  appearance: none;
  background: #333333;
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: inline-flex;
  font-size: 12px;
  height: 15px;
  justify-content: center;
  line-height: 0;
  margin-left: 8px;
  padding: 0;
  transform: rotate(45deg);
  width: 15px;
}

.input-tag__tags li.input-tag__tags__input {
  background: none;
  flex-grow: 1;
  padding: 0;
}