flexbox- I cant figure out what's causing this div to have a blocked out space in flexbox

if anybody could help me solve what’s causing this purple blocked-out box in my #header-content it would be greatly appreciated.

I don’t know it won’t let me post it wants some more information

why does it keep asking for more information

come on i shouldn’t have to type this much stuff

enter image description here

#header {
    background-color: #343c63;
    height: 400px;
   
}

.main-nav {
    display: flex;
    padding: 0px 100px 0px 100px;
    list-style: none;
}


.main-nav li:first-child {
    margin-right: auto;
}

.main-nav a {
    margin: 10px;
    color: white;
    text-decoration: none;
}

#header-content {
   display: flex;
  
   padding-top: 100px;
   padding-left: 100px;
   padding-right: 100px;
}

#image-1 {
 margin-right: 100px;
  
}
<html>
    <head>
        <title>top-flex-box</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="index.css">
    </head>
   
    <body>
        
        <div id="header">
        <nav>
            <ul class="main-nav">
                <li><a href="#" class="logo">Header Logo</a></li>
                
                <li><a href="#">Link One</a></li>
                <li><a href="#">Link Two</a></li>
                <li><a href="#">Link Three</a></li>
                
            </ul>
        </nav>
            
            <div id="header-content">
                <div>
                <h1>This website is awesome</h1>
                <p>This website has some subtext that goes here under the main title. It's smaller font and the color is lower contrast.</p>
                </div>
                
                <div id='image-1'>
                    <p>this is a placeholder for an image</p>
                </div>
            </div>
            
        </div>
        
        
        
    </body>
</html>

>Solution :

please attached your html too.

but is assumed this happened because your div container #header-content as parrent didn’t have width with fixed value,

#header-content {
   display: flex;
   width: 100vw;
   padding-top: 100px;
   padding-left: 100px;
   padding-right: 100px;
}

Leave a Reply