style.css

html,body{
    width: 100%;
    height: 100%;
    font-family: 'Poppins', sans-serif;
    color: #222;
    scroll-behavior: smooth;
    overflow-y: scroll;
}

.navbar-nav>li{
    padding-right: 20px;
}
.nav-link{
    font-size: 1rem;
}
.c_1>ul>.nav-item>.nav-link{
    font-weight: 500;
}
.c_2{
    font-size: 2rem;
}
.carousel{
    margin-top: 80px;
}
.carousel-caption{
    transform: translateY(-20%);
}
.carousel-caption>h1{
    text-shadow: 1px 2px 15px #000;
    font-size: 75px;
    font-family: arial;
}
.carousel-caption>h2{
    text-shadow: 1px 1px 10px #000;
    font-weight: 500;
}
.btn-primary{
    background-color: #6648b1;
    border: 1px slid #6648b1;
}
.btn-primary:hover{
    background-color: #563d7c;
    border: 1px slid #563d7c;
}
.c_4>a{
    padding: 3rem;
    text-decoration: none;
}
.fa-facebook-square{
    color: #3b5998;
}
.fa-twitter{
    color: #00aced;
}
.fa-google-plus-g{
    color: #dd4b39;
}
.fa-youtube{
    color: #bb0000;
}
.fa-instagram{
    color: #517fa4;
}
.fa-facebook-square:hover,
.fa-twitter:hover,
.fa-google-plus-g:hover,
.fa-instagram:hover,
.fa-youtube:hover{
    color:#d5d5d5;
}
footer{
    color:#d5d5d5;
}
.c_4>div>hr{
    width: 75%;
    border-top: 2px solid #d5d5d5;
}
footer>div>.border-bottom{
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    color: #d5d5d5;

}
.c_5>p>.display-4{
    font-size: 60px; border-bottom: 3px solid rgba(0, 0, 0, 0.226); font-weight: 100;
}

@media (max-width:992px)
{
    .c_4>a{
        font-size: 4em;
        padding: 3rem;
    }
}
@media (max-width:768px)
{
    .carousel{
        margin-top: 80px;
    }
    .carousel-caption{
        transform: translateY(-10%)
    }
    .carousel-caption>h1{
        text-shadow: 1px 2px 15px #000;
        font-size: 350%;
    }
    .carousel-caption>h2{
        text-shadow: 1px 1px 10px #000;
        font-size: 140%;
        padding-bottom: .2rem;
        font-weight: 400;
    }   
    .carousel-caption>.btn{
        font-size: 95%;
        padding: 8px 14px;
    }
    .c_5>.display-4{
        font-size: 300%;
    }
    .c_4>a{
        padding: 2rem;
        text-decoration: none;
        font-size: 200%;
    }
    .c_6>h2{
        font-size: 250%;
    }
    
    .navbar-nav>li{
        padding-right:18px;
    }    
    .nav-link{
        font-size: 0.99rem;
    }
    .c_1>ul{
        padding-right: 50px;
    }
}

@media (max-width:576px)
{
    .navbar-nav>li{
        padding-right:2px;
    }    
    .nav-link{
        font-size: 0.95rem;
    }
    .carousel{
        margin-top: 80px;
    }
    .carousel-caption{
        transform: translateY(+10%)
    }
    .carousel-caption>h1{
        text-shadow: 1px 2px 15px #000;
        font-size: 290%;
    }
    .carousel-caption>h2{
        text-shadow: 1px 1px 10px #000;
        font-size: 100%;
        padding-bottom: .2rem;
        font-weight: 400;
    }   
    .carousel-caption>.btn{
        font-size: 80%;
        padding: 8px 14px;
    }
    .carousel-indicators{
        display: none;
    }
    .fa-5x{
        font-size: 60px;
    }
    .c_7>.display-4{
        font-size: 50px;
    }

}
/*---Firefox Bug Fix --*/
.carousel-item {
    transition: -webkit-transform 0.5s ease;
    transition: transform 0.5s ease;
    transition: transform 0.5s ease, -webkit-transform 0.5s ease;
    -webkit-backface-visibility: visible;
    backface-visibility: visible;
  }
  /*--- Fixed Background Image --*/
  figure {
    position: relative;
    width: 100%;
    height: 60%;
    margin: 0!important;
  }
  .fixed-wrap {
    clip: rect(0, auto, auto, 0);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
  #fixed {
    background-image: url('image/mac.png');
    position: fixed;
    display: block;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center center;
    -webkit-transform: translateZ(0);
            transform: translateZ(0);
    will-change: transform;
  }
  /*--- Bootstrap Padding Fix --*/
  [class*="col-"] {
      padding: 1rem;
  }