Time-tracking-dashboard With [HTML, CSS, JS (JSON)]

What specific areas of your project would you like help with?

Well, I have a question about the use of the display flex property which I use to place all content in the center of the browser viewport. I think I am doing a bad practice and I would like someone to help me resolve this question because when I apply this property, although it is executed correctly centering the content I want in the center, the problem is that when I inspect the page two appear Underneath everything, they both take up space in the DOM, so visually it doesn't look fully centered.

Any information will be well received. greetings colleagues