3-column-preview-card-component using HTML and CSS

Congratulations on completing the challenge!🎉. That's a great achievement, and I'm sure you put a lot of effort into it. I really liked the way you approached the challenge and the code you wrote. You demonstrated a good understanding of the concepts and applied them effectively to solve the problem.I have a few suggestions to improve your code further. Add below code to make the background color of button as per design

.col button {
border: 2px solid var(--very-light-gray);
background-color: hsl(0deg, 0%, 100%); // add this value to make background as per design
padding: 0.75rem 1.5rem;
border-radius: 2rem;
cursor: pointer;
}

and When it comes to centering a div or any element on a webpage, using margins may not always be the best approach. so use flexbox or grid layout for centering the div

Here's an example code snippet:

body {
background-color: var(--very-light-gray);
min-height: 100vh;
display: grid;
place-items: center;
}
now remove below lines of code
.container {
margin: 0 auto;
margin-top: 4rem;
}