testimonials-grid using css grid, scss , scss @for loop

👾Hello Priya, congratulations for your new solution!

To make this alignment, first of all put min-height: 100vh to the body to make the body display 100% of the viewport height (this makes the container align to the height size thats now 100% of the screen height) size and display: flex e flex-direction: column to align the child element (the container) vertically using the body as reference.

body {
    min-height: 100vh;
    background: #cfcfcf;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

Improve the grid semantics it using meaningful tags and replace the divs, for example the main div that takes all the content can be wrapped with the tag <main> or section, about the cards you can replace the <div> that wraps each card with <article> and the paragraph with the quote with the tag <blockquote> this way you'll wrap each block of element with the best tag in this situation. Pay attention that <div> is only a block element without meaning.

👋 I hope this helps you and happy coding!