style.css

h1 {
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  text-align: center;
}

* {
  padding: 0;
  margin: 0;
  font-family: sans-serif;
}

.tool h2 {
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  color: #fff;
  font-size: 50px;
  font-weight: bold;
  margin-top: 2%;
  margin-left: 2%;
  letter-spacing: 3px;
}

.tool h2 {
  animation-duration: 3s;
  animation-name: slidein;
}

@keyframes slidein {
  from {
    margin-left: 100%;
    width: 300%;
  }
  to {
    margin-left: 10%;
    width: 100%;
  }
}

.tool h3 {
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  color: #fff;
  font-size: 20px;
  margin-top: 2%;
  margin-left: 6%;
  letter-spacing: 2px;
  font-family: courier;
}

nav ul li {
  list-style-type: none;
  display: inline-block;
  font-size: 25px;
  background-color: transparent;
  transition: 0.8 s all;
  cursor: pointer;
  font-size: 10%;
}

a {
  margin: 0;
  display: block;
  color: black;
  text-align: center;
  padding: 5px 15px;
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  font-size: 20px;
  text-decoration: none;
}

nav ul li a:hover:not(.active) {
  color: white;
  font-size: 20px;
  background-color: maroon;
}

.nav-item {
  border: none;
  background-color: inherit;
  padding: 14px 28px;
  font-size: 16px;
  cursor: pointer;
  display: inline-block;
  margin-left: 15%;
  margin-top: 0;
}

.nav-item:hover {
  background-color: rgb(230, 84, 48);
}

.nav-item {
  color: rgb(15, 15, 15);
}

.h1 {
  margin-left: 10%;
}

.share {
  position: fixed;
  top: 400px;
  transform: translateY(-50%);
}

.share a {
  display: block;
  text-align: center;
  padding: 8px;
  transition: all 0.5s ease;
  color: white;
  font-size: 20px;
}

.share a:hover {
  color: #000;
  width: 10px;
}

.linkedin {
  background: #0e76a8;
  color: white;
}

.github {
  background: #080808;
  color: white;
}

.youtube {
  color: white;
  background: #c4302b;
}

#bottom {
  position: absolute;
  bottom: 0;
  left: 5%;
}