here the code
html,
body {
margin: 0;
`` padding: 0;
}<html>
<head>
<title>SkyWeb</title>
</head>
<body>
<!-- Menu nav -->
<nav>
<ul>
<li><a href="#structure">Day structure</a></li>
<li><a href="#team">Team</a></li>
<li><a href="#schedule">Schedule</a></li>
</ul>
</nav>
<!-- header ironsky -->
<header>
<h1><img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/ironhack-skydive-logo.png alt="IronSkydive Logo">IronSkydive</h1>
<h2>Let the trip begin</h2>
<!-- cite -->
<aside>"The best experience of our lives"<br> Ariel Quiñones&Gonzalo Manrique,Ironhacks Founders
</aside>
</header>
<!-- section one -->
<section id="general-information">
<!-- article one -->
<article>
<h3>Hello!</h3>
<p>Welcome to IronSkydive,the best adventure you will ever have.</p>
<a href="#learn">Learn More</a>
</article>
<!-- article two -->
<article>
<h3>About us</h3>
<p>We like a lot programming websites,but we also love to practice sport.</p>
<a href="#watch">Watch Video</a>
</article>
<!-- article three -->
<article>
<h3>Wanna join?</h3>
<p>Join our fitness program to be in good shape while learning.</p>
<a href="#user">Register</a>
</article>
</section>
<!-- section two -->
<section id="structure">
<h3>How do we structure the day?</h3>
<div>
<!-- article one section two-->
<article>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/ironskydive-training.png>
<h4>1. Training</h4>
<p>We teach all the necessary things to jump from the plane without any kind of problem.</p>
</article>
<!-- article two section two-->
<article>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/ironskydive-get-ready.png>
<h4>2. Get ready</h4>
<p>You are already prepared,you just need the suit and a parachute.All sizes available</p>
</article>
<!-- article three section two-->
<article>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/ironskydive-fly.png>
<h4>3. Fly</h4>
<p>You are ready,and the plane is waiting for us in the hangar.Let´s fly!</p>
</article>
<!-- article four section two-->
<article>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/ironskydive-jump.png>
<h4>4. Jump!</h4>
<p>You have done the most complicated.Just one setp left...jump!</p>
</article>
</div>
</section>
<!-- section three -->
<section id="team">
<h3>Team</h3>
<p>Our team collectively has 75 years of exprience.Odds are, when you jump out of the plane with these professinoals,you won´t go splat.</p>
<div>
<!-- article one -->
<article>
<h4>Harold Rothstein</h4>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/upload_c18b1c463b80090894237a262dfdfbad.jpg>
</article>
<!-- article two -->
<article>
<h4>Susan Phillips</h4>
<img src=h ttps://s3-eu-west-1.amazonaws.com/ih-materials/uploads/upload_a18d6123a7c8e75f7e70a4e59b941093.jpg>
</article>
<!-- article three -->
<article>
<h4>Taylor Roberts</h4>
<img src=https://s3-eu-west-1.amazonaws.com/ih-materials/uploads/upload_7104a331530d1b0611da55093b7dc421.jpg>
</article>
</div>
</section>
<!-- section four -->
<section id="schedule">
<h3>Schedule</h3>
<table>
<thead>
<!-- Schedule ironsky -->
<th>Time</th>
<th>Monday</th>
<th>Tuesday</th>
<th>Wednesday</th>
<th>Thusday</th>
<th>Friday</th>
<th>Saturday</th>
</thead>
<!-- first row -->
<tbody>
<tr>
<td>09:00 - 11:00</td>
<td></td>
<td>X</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
</tbody>
<!-- second row -->
<tbody>
<tr>
<td>12:00 - 14:00</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
</tbody>
<!-- three row -->
<tbody>
<tr>
<td>15:00 - 17:00</td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
</tbody>
</table>
<h3>Schedule a Time Slot</h3>
</section>
<!-- footer -->
<footer>
<section>
<h5>Contact Information</h5>
<br>
<address>IronSkydive<br>
33 Rue la Fayette,<br>
75009 Paris,<br>
France<br>
+33(0)619193088
</address>
<h5>Follow Us</h5>
<ul>
<li><a href="#twi">Twitter</a></li>
<li><a href="#fb">Facebook</a></li>
<li><a href="ig">Instagram</a></li>
</ul>
</section>
</footer>
</body>
</html>Only if I apply the margin:0and padding:0to all the css it removes the spaces, that is, I have to apply it to the li, all the h, the p, etc... So I don't know why it doesn't do it since I am applying it to all the html and body, it does not remove the margin. Any ideas?
I don't know why but now I got what I wanted