body{margin:0;font-family:Arial}
.header{background:#1b5e20;color:#fff;text-align:center;padding:20px}
.hero img{width:100%}
.project{text-align:center;padding:30px}
.gallery img{width:300px;margin:5px}
.cta{background:#25d366;color:#fff;padding:15px 25px;text-decoration:none}
.contact{background:#f4f4f4;text-align:center;padding:20px}
.footer{background:#1b5e20;color:#fff;text-align:center;padding:10px}