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Button at 100% width extends over its container

Have a look at this pen and it should become clear what I mean. Thanks!

Hi Martin,

Can you explain what you're trying to do here? What is the purpose of the wrapper div?

Is the final look supposed to be a button with rounded corners and a border?

As Luke already mentioned, you have a 60px left and right margin on your button. Using box-sizing: border-box will only contain padding and borders into the width calculation. So your button is 100% the width of its container plus 60px on both sides which causes it not to fit inside its container.

Hi Jason, yes, I just figured out the box-sizing problem myself. Thanks for that.

The idea was to center the button under the other form elements. Pretty much like in the HTML forms course here on Treehouse. I used the wrapper for the entire form, I just the rest of the code so you guys don't have to read everything.

Here is the entire pen.

The best idea I have no is to wrap the button element with a div and give this div some margin as needed.

What do you think?

1 Answer

Luke Terzich
Luke Terzich
5,193 Points

Your Margin line is pushing the button away. Replace it with ``` Margin: 0px;

Greg Kaleka
Greg Kaleka
39,021 Points

Yep - this is the answer. You can leave off the units if you like. margin: 0;