Stefany Zapata Naranjo tefasmile

## para_comenzar.html
<!DOCTYPE html>
<html lang="es">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Aprendiendo Grid CSS</title>
  <style>
    html {
      box-sizing: border-box;
	<!DOCTYPE html>
	<html lang="es">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Aprendiendo Grid CSS</title>
	<style>
	html {
	box-sizing: border-box;