Expanding DIV to cover entire width of screen

Allow me to explain my current predicament:

In the following code snippet, I have a simple div element. However, upon running the code, I am presented with a gray box that does not span across the entire browser window as I had intended. Instead, it appears to have a white border.

<div style="height: 30px; background-color: gray; color: white;">
   Hey
</div>

I apologize for any confusion in my explanation, as I struggled to articulate my objective. Thank you for your assistance,

Sincerely, Tom.

csswidthhtml

Answer №1

To ensure a div takes up the entire available space, apply the following code:

width: 100%; 
height: 100%;

You have the option to specify sizes using percentages of the available space.

Answer №2

If you're looking to maintain your current height:

<div style="height: 30px; width: 100%; background-color: gray; color: white;">
   Hello
</div>

To eliminate white borders, you can also include this code snippet: body { padding: 0; margin: 0 }

Answer №3

It seems like you're asking for the width to be set at 100%.

<div style="width: 100%; height: 30px; background-color: gray; color: white;">
   Hello
</div>

Answer №4

To ensure the div occupies all of the available horizontal space, include the CSS property width:100%;.

Answer №5

<head>  
<style>
    body {
        padding: 0;
        margin: 0;
    }
</style>
</head>

<body>
<div style="height: 30px; width: 100% background-color: gray; color: white;">
   Hello there
</div>
</body>

If you want a div to have a height of 30px and stretch across the entire width, setting the width to 100% would achieve that. It's also important to ensure the body has no padding as it could impact the positioning of elements. Using a reset.css file can help with this issue.

Trust this information proves useful!

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