Flex-box and Normal Css

Hey, I see that you are aligning your container at the center right? Well what you could do is that, you could make the declaration in the body tag be

justify-content: center;
align-items: center

This way it will be centered. But if you don't want this approach you could change your .container class, remove the left property and change your margin to margin: 0 auto this way, your container will be centered since you specified the width of it ^^