button {
 background-color: #f8f8f8; /* Grau */
 border: 1px solid gray;
 color: black;
 padding: 5px;
 text-align: center;
 text-decoration: none;
 display: inline-block;
 font-size: 16px;
}
   
label.form {
 border: 1px solid gray;
 padding: 6px;
 text-indent: 10px;
 text-align: justify;
 letter-spacing: 1px;
}

input[type="text"] {
 border: 1px solid gray;
 border-radius: 4px;
 background-color: #f8f8f8;
 padding: 6px;
 font-family: Arial, sans-serif;
 font-size: 16px;
 color: blue;
}

iframe {
 background-color: #f8f8a8; /* Grau */
 border: 1px solid gray;
 color: black;
 padding: 5px;
 text-align: center;
 text-decoration: none;
 display: inline-block;
 font-size: 16px;
}

p.echo {
 border: 1px solid gray;
 border-radius: 4px;
 background-color: #f8f8f8;
 padding: 6px;
 font-family: Arial, sans-serif;
 font-size: 16px;
 color: blue;	
}

select {
 border: 1px solid gray;
 border-radius: 4px;
 background-color: #f8f8f8;
 padding: 6px;
 font-family: Arial, sans-serif;
 font-size: 16px;
 color: blue;
}