Intro component with sign up form

Hi @Leone-Ricardo! Nice solution and great addition!

I have some suggestion for you

• For Submit Button, it's better to use a <button> as it can have image, icons, elements, and text as a display value, whreas <input> can only have text as value. So it become

// <button> by default have "submit" type
 <button id="formSubmit" class="btn_submit">Claim your free trial</button>

• If you implemented the suggestion above, then you can also refactor the inputs looping like this.

// select all input elements
 const inputElements = document.querySelectorAll("input");

// loop all input with forEach, where `inputEl` is the actual input element
  inputElements.forEach((inputEl, idx) => {
    inputEl.classList.remove("error");
    formError[idx].style.display = "none";

//... other codes
  })

I hope it helps! Cheers!