I'm struggling to make the navigation occupy the full space of my flexbox. Currently, it only occupies a small section within the container

I've been struggling with getting the flexbox to fill as I want it to when the code is executed. I'm also looking to make it more responsive to size changes. Despite searching for answers in various resources, I still can't figure out why it's not working. That's why I've turned to this site, which has been helpful to me in the past for other projects.

/* When the user clicks on the button, 
toggle between hiding and showing the dropdown content */
function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

// Close the dropdown if the user clicks outside of it
window.onclick = function(event) {
  if (!event.target.matches('.dropbtn')) {
    var dropdowns = document.getElementsByClassName("dropdown-content");
    var i;
    for (i = 0; i < dropdowns.length; i++) {
      var openDropdown = dropdowns[i];
      if (openDropdown.classList.contains('show')) {
        openDropdown.classList.remove('show');
      }
    }
  }
}
/* Header */
    .column, .columna, .columnab, .columnb {
        align-items: center;
        text-align: center;
        border: solid;
        border-width: thin;
        max-height: 20em;
    }
    .column {
        flex: 33%;
    }
    .columna {
        width: 100%;
        
    }
    .columnab {
        width: 22%;
        
    }
    .columnb {
        width: 17%;
        
    }
    .row {
        min-height: 10em;
        display: flex;
        flex-wrap: wrap;
        background-color: #FF9176;
    }
/* Navigation Section */
    .dropbtn {
        background-color: #FF9176;
        color: #0061A0;
        font-size: 75%;
        font-family: 'Solway', serif;
        padding: 16px;
        border: none;
        cursor: pointer;
    }

    .dropbtn:hover, .dropbtn:focus {
        background-color: #FEB384;
    }

    .dropdown {
        position: relative;
        display: inline-block;
        
    }

    .dropdown-content {
        display: none;
        width: 100%;
        position: absolute;
        background-color: #FEB384;
        min-width: 160px;
        overflow: auto;
        box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
        z-index: 1;
    }

    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
    }

    .dropdown a:hover {background-color: #FECE9D;}

    .show {display: block;}
<header>

<div class="row">
    <div class="column" style="padding: 0">
        <div class="columna">
            <div class="dropdown">
            <button onclick="myFunction()" class="dropbtn">GROUP 1</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="myFunction()" class="dropbtn">GROUP 2</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="myFunction()" class="dropbtn">GROUP 3</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="myFunction()" class="dropbtn">GROUP 4</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        </div>
        <div class="column">
            <h6> LOGO </h6>
            <a href="index.html"><img src="images/print_studio_logo.***" alt="Print Studio's Logo"></a>
        </div>
        <div class="column" style="padding: 0">
        <div class="columna" style="height: 50%;">
            <h6> INSERT CART / LOGIN </h6>
        </div>
        <div class="columna" style="height: 50%;">
            <h6> INSERT SOCIAL </h6>
        </div>
    </div>
</div>
</header>

Answer №1

Welcome to this forum. Your query seems a bit vague. Could you provide more specific details about the element you want to populate, such as pointing out classes or specifying an image?

For now, I have adjusted the width of your dropdown class to be 100%.

.dropdown{
  width: 100%;
}
.dropdown button {
  width: 100%;
}

I have created a demo based on my understanding of the issue.

/* JavaScript Function */
function toggleDropdown() {
  document.getElementById("myDropdown").classList.toggle("show");
}

// Close the dropdown if clicked outside
window.onclick = function(event) {
  if (!event.target.matches('.dropbtn')) {
    var dropdowns = document.getElementsByClassName("dropdown-content");
    var i;
    for (i = 0; i < dropdowns.length; i++) {
      var openDropdown = dropdowns[i];
      if (openDropdown.classList.contains('show')) {
        openDropdown.classList.remove('show');
      }
    }
  }
}
/* CSS Style */
/* Header Styles */
    .column, .columna, .columnab, .columnb {
        align-items: center;
        text-align: center;
        border: solid;
        border-width: thin;
        max-height: 20em;
    }
    .column {
        flex: 33%;
    }
    .columna {
        width: 100%;
        
    }
    .columnab {
        width: 22%;
        
    }
    .columnb {
        width: 17%;
        
    }
    .row {
        min-height: 10em;
        display: flex;
        flex-wrap: wrap;
        background-color: #FF9176;
    }
/* Navigation Styles */
    .dropbtn {
        background-color: #FF9176;
        color: #0061A0;
        font-size: 75%;
        font-family: 'Solway', serif;
        padding: 16px;
        border: none;
        cursor: pointer;
    }

    .dropbtn:hover, .dropbtn:focus {
        background-color: #FEB384;
    }

    .dropdown {
        position: relative;
        display: inline-block;
        width:100%;
    }

    .dropdown-content {
        display: none;
        width: 100%;
        position: absolute;
        background-color: #FEB384;
        min-width: 160px;
        overflow: auto;
        box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
        z-index: 1;
    }

    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
    }

    .dropdown a:hover {background-color: #FECE9D;}
    
    .dropdown button{ width:100%;}
    
    .show {display: block;}
<header>

<div class="row">
    <div class="column" style="padding: 0">
        <div class="columna">
            <div class="dropdown">
            <button onclick="toggleDropdown()" class="dropbtn">GROUP 1</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="toggleDropdown()" class="dropbtn">GROUP 2</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="toggleDropdown()" class="dropbtn">GROUP 3</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        <div class="columna">
            <div class="dropdown">
            <button onclick="toggleDropdown()" class="dropbtn">GROUP 4</button>
            <div id="myDropdown" class="dropdown-content">
            <a href="#">Item 1</a>
            <a href="#">Item 2</a>
            <a href="#">Item 3</a>
            </div>
            </div>
        </div>
        </div>
        <div class="column">
            <h6> LOGO </h6>
            <a href="index.html"><img src="images/print_studio_logo.***" alt="Print Studio's Logo"></a>
        </div>
        <div class="column" style="padding: 0">
        <div class="columna" style="height: 50%;">
            <h6> INSERT CART / LOGIN </h6>
        </div>
        <div class="columna" style="height: 50%;">
            <h6> INSERT SOCIAL </h6>
        </div>
    </div>
</div>
</header>

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