Color will not show up in the header. The footer has color but note the header.

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My program as a Header, Article ,Nav, Aside, Footer. We I run my program, everything show up accept the The Color to the Header section. The footer and the Header have are set with

Header, footer {
background: green;
height: 20vh;
If you run the program, you will see that the color will not show in the Header. I can not figure out what is getting helping.

What I have tried:

HTML

<body>
    <header>Header</header>
    <div id="main">
        <article>Article</article>
        <nav>Nav</nav>
        <aside>Aside</aside>
    </div>
    <footer>Footer</footer>
</body>

CSS

* {
    box-sizing: border-box; 
}
body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    margin: 0;
}
#main {
    display: flex;
    flex: 1;
}
#main > article {
    background: blue;
    flex: 1;
    order: 1;
}
#main > nav, 
#main > aside {
    flex: 0 0 20vw;
}
#main > nav {
    background: #D7E8D4;
    order: 3;
}
#main > aside {
    background: beige;
    order: 2;
}
Header, footer {
    background: green;
    height: 20vh;
}
Header, Footer, Article, Nav, aside {
    padding: 1em;
}

Posted 15-Sep-21 7:26am

Member 15300219

Updated 15-Sep-21 22:40pm

Richard Deeming

v3

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Comments

Richard Deeming 16-Sep-21 4:42am

Your code works fine for me, although you should correct the casing of the element selectors - header instead of Header, etc.

Demo[^]

Maybe your markup doesn't match? I had to guess at the parts which were lost when you posted your question.

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livio delacruz · Answer 1 · 2021-09-15T17:37:00

Solution 1

~~background: green~~
background-color: green;

Posted 15-Sep-21 17:37pm

livio delacruz

Comments

Richard Deeming 16-Sep-21 4:36am

Irrelevant - the background property is a shortcut for setting multiple background-related properties, including the colour. It's literally the first example in the documentation!

background - CSS: Cascading Style Sheets | MDN[^]