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CSS

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HTML 

              
                <script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>

<header>
        <span class="mainTitle">Tribute to <b>Elon Musk</b></span>
        <nav>
            <ul>
                <li>Home</li>
                <li>Main</li>
                <li>Item</li>
            </ul>
        </nav>
    </header>

    <main id="main">
        <section id="title">
            
            <article id="mainArticle">
            <div id="img-div">
                <img id="image" alt="Musk at the Royal Society admissions day in London, July 2018" src="https://upload.wikimedia.org/wikipedia/commons/e/ed/Elon_Musk_Royal_Society.jpg">
                <div id="img-caption">Founder, CEO, lead designer of SpaceX
                    CEO, product architect of Tesla, Inc.
                    Founder of The Boring Company and X.com (now PayPal)
                    Co-founder of Neuralink, OpenAI, and Zip2
                    Chairman of SolarCity
                </div>
            </div>

            <div id="tribute-info">
                <h2>Elon Musk</h2> <i> - Founder, CEO, lead designer of SpaceX</i>
                <p> Musk was born to a Canadian mother and South African father and raised in Pretoria, South Africa. He briefly attended the University of Pretoria before moving to Canada when he was 17 to attend Queen's University.</p> 
                <p>He transferred to the University of Pennsylvania two years later, where he received dual bachelor's degrees in economics and physics. He moved to California in 1995 to begin a Ph.D. in applied physics and material sciences at Stanford University, but dropped out after two days to pursue a business career.</p> 
                <p>He co-founded Zip2, a web software company, which was acquired by Compaq for $307 million in 1999. Musk then founded X.com, an online bank. It merged with Confinity in 2000, which had launched PayPal the previous year and was subsequently bought by eBay for $1.5 billion in October 2002.</p>
               
            
                You can <a id="tribute-link" href="" target="_blank">read more about Elon Musk here.</a>
            </div>
        </article>
        </section>
        <aside>
            <article>
                <h4>Future Mars Missions</h4>
                <table>
                    <tr>
                        <th>Mission</th>
                        <th>Organization</th>
                        <th>Launch</th>
                        <th>Type</th>
                    </tr>
                    <tr>    
                        <td>ExoMars 2022</td>
                        <td>ESA</td>
                        <td>2022</td>
                        <td>Lander, rover</td>
                    </tr>
                    <tr>
                        <td>Mars Terahertz Microsatellite</td>
                        <td>JAPAN</td>
                        <td>2022</td>
                        <td>Orbiter, lander</td>
                    </tr>
                    <tr>
                        <td>Demo mission</td>
                        <td>SpaceX</td>
                        <td>2022</td>
                        <td>Lander, cargo</td>
                    </tr>
                    <tr>
                        <td>Crewed mission</td>
                        <td>SpaceX</td>
                        <td>2024</td>
                        <td>Lander, cargo, crew</td>
                    </tr>
                </table>
            </article>
            <article>
                <h4>Future Mars Missions</h4>
                <table>
                    <tr>
                        <th>Mission</th>
                        <th>Organization</th>
                        <th>Launch</th>
                        <th>Type</th>
                    </tr>
                    <tr>    
                        <td>ExoMars 2022</td>
                        <td>ESA</td>
                        <td>2022</td>
                        <td>Lander, rover</td>
                    </tr>
                    <tr>
                        <td>Mars Terahertz Microsatellite</td>
                        <td>JAPAN</td>
                        <td>2022</td>
                        <td>Orbiter, lander</td>
                    </tr>
                    <tr>
                        <td>Demo mission</td>
                        <td>SpaceX</td>
                        <td>2022</td>
                        <td>Lander, cargo</td>
                    </tr>
                    <tr>
                        <td>Crewed mission</td>
                        <td>SpaceX</td>
                        <td>2024</td>
                        <td>Lander, cargo, crew</td>
                    </tr>
                </table>
            </article>
        </aside>

    </main>

    <footer>
        <p>©2020 Example. All other trademarks and brand names are the property of their respective owners.</p>
    </footer>

</body>
!

CSS 

              
                
    body{
        margin: 0px;
        font-family: Arial, Helvetica, sans-serif;
        font-size: 1.5em;
        line-height: 28px;
    }
    header{
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-content: center;
        padding: 0;
        margin: 0;
        background-color: #09191B;
        color: white;
    }
    .mainTitle{
        margin-left: 1em;
        padding: 2em;  
    }
    nav{
        align-self: center;
    }
    ul{
        display: flex;
        align-content: center;  
    }
    li{
        list-style-type: none;
        margin-right: 3em;
        align-self: center;
        font-size: 1rem;
    }
    /*Main related*/

    main{
        margin: 1vw 2vw;
        display: grid;
        grid-template-columns: 2fr 1fr;
        justify-content: space-between;
        padding: 2vw;
        
    }

    section{
        grid-template-columns: 2fr;
    }
    aside{
        grid-template-columns: 1fr;
    }

    aside article{
        background-color: #fdfdfd;
        padding: 1vw;
        border-width: 1px;
        border-color: #969696;
        border-style: solid;

        margin-bottom: 1vw;
        font-size: 0.7em;
    }

    #mainArticle{
        display: flex;
        flex-direction:row-reverse;
    }
    #img-div{
        display: flex;
        align-content: center;
        margin: 0vw 1vw;
        flex-direction: column;
        width: auto;
    }
    #image{
        width: 20rem;
        height: auto;
    }
    img{
        width:100%;
        margin: auto;
        max-width: 1000px;
        
    }
    #img-caption{
        margin: 0.5vw 1vw;
        font-size: 0.8em;
    }

    #tribute-info{
        margin: 1vw 0vw;
    }
    #tribute-info i{
        font-size: 1.2rem;
    }

    footer{
        color: white;
        background-color: #09191B;
        padding: 0.5vw 0vw;
        text-align: center;
        font-size: 0.8em;
    }

    @media (max-width: 350px) { 
        table{
            font-size: 1em;
        }
        *{
            font-size: 0.9em;   
        }
        #image{
            width: 70%;
        }
    }
    /*Mobile responsive*/
    @media (max-width: 862px) { 
        #mainArticle{
            flex-direction: column;
        }
        #img-caption{
            margin: 1vw;
            
        }
        main{
            grid-template-columns: 1fr;
            margin: 1vw 0vw;
            padding: 0;
        }
        .mainTitle{
            font-size: 0.5em;
            margin: auto;
        }
        nav ul, ul li{
            font-size: 0.7em;
            margin-right: 10px;
            display: none;
        }
        aside{
            width: 100%;
            text-align: center;
            margin-top: 5vh;
        }
        aside table{
            margin: 0 auto;
        }
    }
    @media (max-width: 1600px) { 
        main{
            grid-template-columns: 1fr;
            margin: 4vw 1vw;
        }
        aside{
            justify-self: center;
            text-align: center;
            margin-top: 5vh;
        }
    }
    @media (min-width: 2400px) { 
        body{
            font-size: 1.5rem;
            line-height: 1vw;
        }
        aside{
            width: auto;
        }
        aside article{
            width: auto;
        }
        aside article table{
            width: 50%;
            margin: auto;
        }
    }
!

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