*{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    box-sizing: border-box;
}

.banner{
    width:100%;
    height:109vh;
    background-image:linear-gradient(rgba(0, 0, 0, 0.717),rgba(0,0,0,0.75)),url(https://wallpapercave.com/wp/wp1874159.jpg);
    background-size: cover;
    background-position: center;
}

.navbar{
    width: 85%;
    margin: auto;
    padding: 35px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo{
    width: 120px;
    cursor: pointer;
    background: transparent;
}

.navbar ul li{
    list-style: none;
    display: inline-block;
    margin: 0 20px;
    position: relative;
}
    
    .navbar ul li a{
    text-decoration: none;
    color:#fff;
    text-transform:uppercase;
    }

    .navbar ul li ::after{
    content:' ';
    height:3px;
    width:0;
    background:#009688;
    position: absolute;
    left:0;
    bottom:-10px;
    transition:0.5s;
    }

    .navbar ul li :hover{
    width:100%;
    color: #009688;
    }

    .content{
    width:100%;
    position: absolute;
    top:50%;
    transform: translateY(-50%);
    text-align:center;
    color:#fff;
    }

    .content h1{
    font-size:70px;
    margin-top:80px;
    }

    .content p{
    margin:20px auto;
    font-weight:100;
    line-height:25px;
    }

    button{
    width:200px;
    padding:15px 0;
    text-align:center;
    margin:20px 10px;
    border-radius:25px;
    font-weight:bold;
    border:2px solid #009688;
    background: transparent;
    color:#fff;
    cursor:pointer;
    position:relative;
    overflow:hidden;
    }

    span{
    background:#009688;
    height:100%;
    width:0;
    border-radius:25px;
    position: absolute;
    left:0;
    bottom:0;
    z-index:-1;
    transition:0.5s;
    }

    button:hover span{
    width:100%;
    }

    button:hover span{
    border: none;
    }

    .contact{
        width:80%;
        margin:auto;
    }