What is the best way to ensure the header spans the entire width of a webpage using the display: flex; property and flex-direction: column styling within the body element

Click here for the CSS code snippet

Hello everyone, this is my very first query on Stack Overflow. I know it might be a simple question but it's my first time posting here so kindly bear with me.

Below is the CSS code snippet provided:
     *{
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    body{
        display: flex;
        flex-direction: column;
    }
    #header{
        background-color: cyan;
        border: 1px inset black;
        display: flex;
        align-items: center;
        margin: 0 auto;
    }
    #header ul{
        list-style: none;
        display: flex;
        padding: 10px;
    }
    #header a{
        text-decoration: none;
        padding: 5px;
    }
    #heading{
        font-size: 25px;
        margin: 0 auto;
    }
    #left-content ul{
        display: flex;
        flex-direction: column;
        padding-left: 20px;
        background-color: yellow;
    }
    #left-content a{
        text-decoration: none;
    }
    #right-content{
        background-color: #f04e0f;
    }

I am seeking guidance on how to make the header section, which is the top portion of the webpage, occupy the full width using the properties display: flex; and flex-direction: column...

Your suggestions are greatly appreciated as I am unsure of the next steps to take. Thank you in advance for your help.

Answer №1

Upgrade your #header using the following code:

#header{
    background-color: teal;
    border: 2px solid black;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
}

By implementing this, your header will span across the entire viewport width.

Answer №2

To achieve the desired effect, consider applying width:100% to the #header element or eliminating margin: 0 auto; from it.

Currently, you are instructing the element to be centered using margin: 0 auto;.

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