body {
  background-attachment: fixed;
  background-color: #9e0b0f;
  height: 100vh;
  width: 100%; 
  margin: 0;
  overflow: none;
  font-family: arial; 
  font-size: 13px;}
* { box-sizing: border-box;} 
#container { position: relative; width: 100%; height: 100%; }
#logo { position: relative; width: calc(100% - 20px); height: auto; }
#content { border: 1px solid black; border-radius: 8px; line-height: 18px; padding: 10px; background-color: rgba(255,255,255,0.6); overflow-y: auto;}

@media screen and (max-height: 1000px) { 
body { background-image: url('/betalen/images/background-site_1000.png'); background-repeat: no-repeat; } 
}
@media screen and (min-height: 1001px) { 
body { background-image: url('/betalen/images/background-site_1800.png'); background-repeat: no-repeat; } 
}
@media screen and (max-width: 750px) { 
body { background-position-x: -150px; }
#content { width: calc(100% - 252px); margin: 105px; } 
}
@media screen and (max-width: 500px) { 
body { background-position-x: -250px; }
#content { width: calc(100% - 42px); margin: 30px 10px 10px 10px; } 
} 
@media screen and (min-width: 751px) { 
#content { width: 500px; margin-left: calc(50% - 250px); margin-top: 100px;} 
} 

#code_invoer_container { max-width: 350px; padding: 10px; height: auto; margin: 50px auto; background-color: rgba(255,255,255,0.6); text-align: center;}
#code_invoer_container span { display: block; margin-bottom: 20px; }
.formulier { display: block; padding: 10px; border: 1px solid white; text-align: center; background-color: rgba(255,255,255,0.6);}
.code_invoer_veld { font-size: 26px; font-weight: bold; letter-spacing: 14px; padding-left: 26px; width: 300px; text-transform:uppercase; text-align: center; background: none; border-style: none; border-bottom: 2px solid white; margin-right: 8px; font-family: monospace; color: grey;}
.knop { display: block; text-decoration: none; font-size: 20px; color: black; padding: 5px; font-weight: bold; margin-top: 20px; width: 100%; border-radius: 0; border: 2px solid black; cursor: pointer;}

.foutmelding { display: block; background-color: #cc0000; color: white; font-weight: bold; padding: 5px; border: 1px dashed white;}