How to make a picture in the center like in a layout?

Question

css

https://dropmefiles.com/Q3bUV - layout
https://krylov01.github.io/
https://github.com/krylov01/krylov01.github.io
I decided to center via positioning(position absolute and position relative on its parent ), but everything looks crooked for me. What should I do? help me please

Answer 1

.first_laptop{
    text-align: center;
}
.first_laptop img{
    position: relative;
    margin: auto;
    top: 67px;
}