html, body{
   height: 100vh;
}

body {
   background-image: url(../images/background.jpg);
   background-position: center center;
   background-repeat: no-repeat;
   background-attachment: fixed;
   background-size: cover;
   font-family: Raleway, sans-serif;
   color: #009b4d;
}

h1 {
   font-weight: 900;
   font-size: 4em;
}

div.flex {
   display: flex;
   flex-wrap: wrap;
}

div.block {
   display: block;
   text-align: center;
   margin: 0 auto 0 auto;
}

img.margin {
   margin: 16px;
   max-width: 90vw;
}

img.logo {
   margin-top: 32px;
   width: 80vw;
}

p {
   color: black;
   text-align: left;
   padding: 16px;
}

@media screen and (min-width: 600px) {
   p {
      max-width: 50vw;
      margin: auto;
   }

   img.logo {
      width: 50vw;
   }
}