.topnav{
    background-color: black;
    overflow: hidden;
}
.topnav a{
    float: left;
    color:#f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}
.topnav a:hover{
    background-color:grey;
    color: black;
}
.topnav a.active{
    background-color: rgb(48, 48, 48);
    color: white;
}
.topnav .icon{
    display: none;
}
@media screen and (max-width: 600px) {
    .topnav a:not(:first-child) {display: none;}
    .topnav a.icon {
      float: right;
      display: block;
    }
  }
  @media screen and (max-width: 600px) {
    .topnav.responsive {position: relative;}
    .topnav.responsive a.icon {
      position: absolute;
      right: 0;
      top: 0;
    }
    .topnav.responsive a {
        float: none;
        display: block;
        text-align: left;
      }
    }


body, html{
    height: 100%;
    margin: 0;
}
.hero-image{
    background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(photo.jpg);
    height: 100%;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover; 
    position:relative;
}
.hero-text{
    text-align: center;
    position: absolute;
    top: 45%;
    left: 30%;
    color: white;
}
h1{
    font-size: 40px;
}
p{
    font-size: 30px;
}