portfolio.css

   *{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
   }
   a{
    text-decoration: none;
   }
   ul{
    list-style: none;
   }
   .active{
    color: #fc036b;
    text-decoration: underline;
    font-weight: bold;
   }
/* navbar */
  .navbar{
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding: 20px;
    color: whitesmoke;
  }
  .nav-links{
    display: flex;
    align-items: center;
  }
  .nav-links li{
    margin: 0 15px;
  }



   /* header */
   header{
    width: 100vw;
    height: 100vh;
    background-image: url(./pic.jpg);
    /* background-position: bottom; */
    background-size: cover;
    display: flex;
    align-items:flex-end;
    justify-content: center;
   }
   .header-content{
    margin-bottom: 150px;
    color: whitesmoke;
    text-align: center;
   }
   .header-content h2{
    font-size: 4vmin;
   }
   .line{
    width: 150px;
    height: 4px;
    background: #fc036b;
    margin: 10px auto;
   }
   .header-content h1{
    font-size: 7vmin;
    margin-top: 50px;
    margin-bottom: 30px;

   }
   .ctn{
    padding: 8px 15px;
    background: #fc036b;
    border-radius: 30px;
    color: whitesmoke;

   }
   /* mobile device */
   @media only screen and (max-width:850px){
    .navbar{
        padding: 0;

    }
    .logo{
        position: absolute;
        top: 30px;
        left: 30px;
    }
    .nav-links{
        flex-direction: column;
        width: 100%;
        height: 100vh;
        justify-content: center;
        background: #484872;
    }
    .nav-links li{
        margin: 30px auto;
    }
   }