I have cleared 10/12 test cases but the design especially the profile link part is not working out well please can anyone help me in this regard.
Nice try. I would
Center everything. There are many ways to do it. I would search flexbox way of doing it.
remove whitespace around your page. It’s body’s padding/margin.
Change mouse cursor when it hovers on show all button.
Center Facebook button.
Good luck!
hmm
i used padding , margins without which it just wasn’t positioning the text properly.
Search centering with flexbox on google. It will help you 
also in the profile link part when i click the button it is not going to the that page or not opening at all.
anything wrong in it?
You are wrapping <button> inside anchor tags <a>. That is a mistake. Try just to use an anchor tag for this purpose.
It should look something like this:
<div class="d2">
<a href="https://codepen.io/freeCodeCamp/pen/MJjpwO" class="btn3">Show all</a>
</div>
If you want your links to look like a button, then add .btn3 class to your CSS
.btn3 {
display: inline-block;
padding: 10px 30px;
margin: 20px;
text-decoration: none;
background: gray;
border-radius: 5px;
color: white;
}
.btn3:hover {
background: silver;
}
I recomend you to read this article about this confusing -button- vs -anchor-link- thing.
Hope it helps