style.css

      .homepage {
        padding-top: 70px;
        background-image: url("https://images.unsplash.com/photo-1431512284068-4c4002298068?auto=format&fit=crop&w=1352&q=80");
        background-size: cover;
      }
      
      i {
        transition: transform 0.5s linear;
      }

      i:hover {
        color: lightblue;
        transform: rotate(360deg) scale(2);
      }

      a {
        color: white;
      }

      .homepage h1 {
        font-size: 4em;
        font-family: Ubuntu Mono;
        padding-top: 15%;
      }

      .homepage h1, h3 {
       text-align: center;
      }

      .homepage h3 {
        padding-bottom: 15%;
      }
      
      .about-me {
        padding-top: 50px;
        padding-bottom: 40px;
        animation: 3s infinite alternate slideIn;
      }

      .about-me h1, .contact-me h1 {
        text-align: center;
        padding-bottom: 40px;
      }
      
      .contact-me {
        color: white;
        padding-top: 40px;
        padding-bottom: 40px;
      }

      .contact-me .btn {
        border-radius: 100%;
        border: 2px solid white;
        padding: 0.5em;
        width: 50px;
      }

      .contact-me .btn:hover {
        border: 2px solid blue;
        color: blue;
      }