body {
  background: url(bg.png) no-repeat center top ; 
  background-size: cover; margin: 0; padding: 0;
  background-color: #333333;
}

div.transbox {
  margin: 30px;
  background: rgba(255,255,255,0.5);
  border: 1px solid black; 
}

div.transbox form {
  margin: 0 auto;
  font-weight: bold;
  color: #000000;
  text-align: center;
  padding: 20px 0 15px 0;
  width: 100%;
}
.main {   
  width: 100%;
  border: 1px solid #c3c3c3;
  display: flex;
  flex-wrap: wrap;
  align-content: center; 
}
.subbuttn{
    background: #F99B02;
    padding: 9px 31px;
    color: white;
    font-size: 18px;
    border: none;
    border-radius: 26px;
}

.error{
    
   margin: 1%;
  font-weight: bold;
  color: orange;
  text-align: center;
  width: 100%; 
  font-size: 30px;
  text-shadow: 2px 0 #000
}

.btn{ 
    padding: 9px 0 9px 25px;
    color: white;
    font-size: 18px;
    border: 2px solid ;  
    background: black;
    border-radius: 26px;
}

@media only screen and (max-width: 550px) {
body { background-size: inherit; }

.main {  /*  height:300px; */
}
.btn{  
    font-size: 14px; width: 75%; }

}