Write a React Component from Scratch (Please Help)

Tell us what’s happening:

Not sure what I did wrong any help is appreciated

Your code so far

class MyComponent extends React.Component {
    constructor(props) {
    render() {
                <h1>My First React Component!:</h1>
ReactDom.render(<MyComponent />, document.getElementById('challenge-node'));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36.

Link to the challenge:

First, it’s ReactDOM (with DOM).
Second, because of Automatic Semicolon Insertion, a semicolon is inserted after return by JS engine. To avoid it place something after return on the same line (google it).
Third, you have extra colon in the <h1> text.