style.css

/* apply a natural box layout model to all elements */
        *, 
        *:before, 
        *:after {
            -moz-box-sizing: border-box;
            -webkit-box-sizing: border-box; 
            box-sizing: border-box;
        }

        html { 
            background: url('Stock Photographs/bikes.jpg') no-repeat center center fixed; 
            -webkit-background-size: cover;
            -moz-background-size: cover;
            -o-background-size: cover;
            background-size: cover;
            font-family: 'Quicksand', sans-serif;
            font-weight: 300;
            font-size: 1em;
            color: #CCC;
            line-height: 1.5em;
        }

        h1 {
            font-family: 'Roboto', sans-serif;
            font-weight: 300; 
            font-size: 4em; 
            line-height: 1.125em;
            color: #FFF;
        }

        p {
            font-size: 1.125em;
        }

        .container {
            width: 100%;
            height: 100%;
        }

        .bg {
            background: rgba(0,0,0,0);
        }

        .welcome {
            background: rgba(0,0,0,.7);
            width: 68%;
            margin: 0 auto;
            margin-top: 100px;
            text-align: center;
            border-radius: 5px;
            padding: 10px;
        }

        .logo {
            width: 50%;
            margin: 0 auto;
            margin-top: 20px;
        }

        .content {
            width: 68%;
            margin: 50px auto;
            text-align: center;
        }

        .btn {
            display: inline-block;
            font-size: 2em;
            padding: 15px 30px;
            margin: 20px 20px;
            background: #339933;
            border-radius: 5px;
            box-shadow: 0px 3px 0px #005410;
        }

        .btn:hover {
            background: #005410;
            cursor: pointer;
        }

        .btn a{
            text-decoration: none;
            color: #FFF;
        }

        .footer {
            position: fixed;
            bottom: 0px;
            width: 100%;
            height: 25px;
            text-align: center;
            font-size: .7em;
            line-height: 0;
            color: #FFF;
            padding-bottom: 5px;
            background: rgba(0,0,0,.8);
            

        }

        span {
            color: #8F8F8F;
        }

        span a {
            color: #8F8F8F;
            text-decoration: none;
        }

        /* Media Queries */

        @media screen and (min-width: 769px) and (max-width: 1094px) {
            
            .content {
                width: 85%;
            }

            .btn {
                display: block;
                margin: 10px 50px;
            }


            .logo {
                width: 70%;
            }

            .welcome {
                margin-bottom: 100px;
            }

            h1 {
                font-size: 2.5em;
            }

        }

        @media screen and (min-width: 481px) and (max-width: 768px) {
            
            .content {
                width: 95%;
            }

            .btn {
                display: block;
                margin: 10px 50px;
            }


            .logo {
                width: 70%;
            }

            .welcome {
                margin: 10px auto;
                width: 95%;
            }

            h1 {
                font-size: 2em;
            }

        }

        @media screen and (max-width: 480px) {
            
            .content {
                width: 95%;
            }

            .btn {
                display: block;
                margin: 10px 2px;
                width: 100%;
            }


            .logo {
                width: 70%;
            }

            .welcome {
                margin: 10px auto;
                width: 95%;
            }

            h1 {
                font-size: 1.7em;
            }

            span {
                display: none;
            }

        }