<nav>
  <a href="#">Home</a>
  <a href="#">About Us</a>
  <a href="#">Services</a>
  <a href="#">Documentation</a>
  <a href="#">Specifications</a>
  <a href="#">Brands</a>
  <a href="#">Shop</a>
  <a href="#">Delivery</a>
  <a href="#">Contact</a>
  <a href="#">Help</a>
</nav>

body {
  margin: 0;
}
nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 5px;
  background-color: LightGray;
}
a {
  margin: 2px 0.6%;
  background-color: white;
  color: black;
  text-decoration: none;
  border: 1px solid red;
  border-radius: 5px;
  padding: 3px;
  font: 16px sans-serif;
}