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HTML 

              
                <script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>
<!DOCTYPE html>
<title>
James Clerk Maxwell
</title>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="styles/style1.css" type="text/css">
</head>
<body>
<div id="main">
<h1 id="title">James clerk maxwell</h1>
<div id="img-div">
<img id="image" src="http://www.hddocumentary.com/wp-content/uploads/2017/01/vlcsnap-2016-01-27-12h21m08s055.jpg" alt="James Clerk Maxwell">
<div id="img-caption">the man who changed the world</div>
</div>

<div id="tribute-content">
<div class="paragraph">Whether you are talking on your cell phone, watching your favorite television program, surfing the web, or using your GPS to guide you on a trip, these are all modern conveniences made possible by the foundational work of the 19th century Scottish physicist James Clerk Maxwell. Though Maxwell didn’t discover electricity and magnetism, he did put in place a mathematical formulation of electricity and magnetism that built upon the earlier work of Benjamin Franklin, André-Marie Ampère, and Michael Faraday.<br>
His most notable achievement was to formulate the classical theory of electromagnetic 
readiation, bringing together for the first time Electricity, Magnetism, and Light
as different manifestations of the same phenomenon</div>

<div class="paragraph">
Maxwell was an expert in several distinct fields of science:
<ul id="list1">
<li>Electromagnetism</li>
<li>Astronomy</li>
<li>Motion Of Gases</li>
<li>Optics</li>
</ul>
</div>

<div id="paragraph">
He produced outstanding work in all areas.<br>
Maxwell's equations for electromagnetism have been called the <span id="capitalize">"second great
unification in physics"</span> after the first one realised by Isaac Newton.<br>
Maxwell was genius from an early age. He wrote his first scientific paper at age 14.
In his paper, he described a mechanical means of drawing mathematical curves with a piece of string, and the properties of Ellipses, Cartesian Ovals, and related curves with more than two foci.<br>
Maxwell was educated first at the University of Edinburgh and later at Cambridge University, and he became a fellow of Trinity COllege in 1855. He was professor of natural philosophy at Aberdeen University from 1856 to 1860 and occupied the chair of natural philosophy and astronomy at King's Colege, University of London, form 1860 to 1865.<br><br><br>
<strong>The major contributions of Maxwell in the field of Science are:</strong>
<ul id="contributions">
<li>Investigation of the motions of Saturn's Rings</li>
<li>Colour Perception of humans</li>
<li>World's first color photograph</li>
<li>Kinetic Theory Of Gases</li>
<li>Laws Of Electricity And Magnetism</li>
<li>Electromagnetic Theory Of Light</li>
</ul>
<br>
Maxwell’s work helped us understand phenomena from the small wavelength X-rays that are widely used in medicine to the much longer wavelength waves that allow the propagation of radio and television signals. The follow-up developments of Maxwell’s theory have given the world all forms of radio communication including broadcasting and television, radar and navigational aids, and more recently the smart phone, which allows communication in ways not dreamt of a generation ago. When Albert Einstein’s theories of space and time, a generation after Maxwell’s death, upset almost all of “classical physics,” Maxwell’s equation remained untouched—as valid as ever.
<br>
</div>

<div id="quote">
<blockquote><em>"From a long view of the history of mankind—seen from, say, ten thousand years from now—there can be little doubt that the most significant event of the 19th century will be judged as Maxwell's discovery of the laws of electrodynamics."</em></blockquote>
<span id="author">— Richard P Feynman (physicist)</span>

</div>

<div id="footer"><h3>Read more about the work and life of James Clerk Maxwell <a id="tribute-link" href="https://en.wikipedia.org/wiki/James_Clerk_Maxwell" target="_blank">here.</a></h3>
</div>
</div>
</body>
</html>
!

CSS 

              
                body{
background: linear-gradient(#c9ffbf, #ffafbd);
font-family: archivo, helvetica;
margin: 20px 100px;
}



#tribute-content{
	font-size: 20px;
	margin: 40px;
}

#capitalize{
	text-transform: capitalize;
}

#img-caption{
	padding: 5px;
	font-size: 20px;
	font-weight: bold;
	text-transform: uppercase;
	padding-top: 0px;
	text-align: center;
}

#title{
	text-align: center;
	font-size: 48px;
	color: indigo;
	text-transform: uppercase;
}

#img-div{
	border: 15px solid white;
	background-color: white;
	width: 100%;
	margin-bottom: 30px;
}

#image{
	width: 100%;
}

#quote{
	background: #e3e3e3;
	padding: 5px;
	margin: 10px;
}

#author{
	margin-left: 50px;
}

@media screen and (max-width: 800px){
	body{
		margin: auto;
	}
	
	#tribute-content{
		margin: 5px;
		font-size: 16px;
	}
	
	#img-caption{
		padding: 0px;
		font-size: 10px;
	}
	
	#title{
		font-size: 20px;
	}
	
	#img-div{
		border: 5px solid white;
		margin-bottom: 20px;
	}
	#image{
		width: 100%;
	}
	#img-div{
		width: 100%;
	}
	#author{
		margin-left: 8px;
	}
	#quote{
		margin: 0px;
	}
	#footer{
		font-size: 12px;
	}
		

}
!

JS 

              
                // !! IMPORTANT README:

// You may add additional external JS and CSS as needed to complete the project, however the current external resource MUST remain in place for the tests to work. BABEL must also be left in place. 

/***********
INSTRUCTIONS:
  - Select the project you would 
    like to complete from the dropdown 
    menu.
  - Click the "RUN TESTS" button to
    run the tests against the blank 
    pen.
  - Click the "TESTS" button to see 
    the individual test cases. 
    (should all be failing at first)
  - Start coding! As you fulfill each
    test case, you will see them go   
    from red to green.
  - As you start to build out your 
    project, when tests are failing, 
    you should get helpful errors 
    along the way!
    ************/

// PLEASE NOTE: Adding global style rules using the * selector, or by adding rules to body {..} or html {..}, or to all elements within body or html, i.e. h1 {..}, has the potential to pollute the test suite's CSS. Try adding: * { color: red }, for a quick example!

// Once you have read the above messages, you can delete all comments.
!
999px

Console