:root {
  --colore-sfondo: #2F4F4F;     /* verdone */
  --colore-carattere: #FFFFFF;  /* bianco   var(--colore-carattere);   #FFFFFF;  */
  --colore-debug: #2F4F4F;      /* verdone / rosso    var(--colore-debug);   */
  --colore-exif: yellow;        /*  rosso    var(--colore-exif);   */
}
body {
    padding: 0;
    margin: 0;
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: normal;
	background-color: #2F4F4F;   /* colore di background-color: #2F4F4F; */   
}

h1 {
    margin: 0;
    margin-bottom: 18px;
	font-size: 20px;
}

h1logout {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);
    margin: 0;
    margin-bottom: 18px;
	font-size: 28px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	margin-left: 20px;
}

h2logout {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);
    margin: 0;
    margin-bottom: 18px;
	font-size: 24px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	margin-left: 20px;
}
h3logout {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);
    margin: 0;
    margin-bottom: 20px;
	font-size: 16px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	margin-left: 20px;
}

h1pagine {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);  /* bianco #FFFFFF; */
    margin: 0;
    margin-bottom: 18px;
	font-size: 28px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	/* text-shadow: 2px 2px 5px red; */
	margin-left: 20px;
}

h2pagine {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);
    margin: 0;
    margin-bottom: 18px;
	font-size: 24px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	margin-left: 20px;
}
h3pagine {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-carattere);
    margin: 0;
    margin-bottom: 20px;
	font-size: 16px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
	margin-left: 20px;
}

h3paginedebug {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-debug);    /*    colore sfondo #2F4F4F; */
    margin: 0;
    margin-bottom: 20px;
	font-size: 16px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
}
h2exif {
    font: 14px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-exif);    /*    colore sfondo #2F4F4F; */
    margin: 0;
    margin-bottom: 20px;
	font-size: 16px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
}
h3exif {
    font: 12px 'Comic Sans MS', sans-serif;
	font-weight: bold;
	color: var(--colore-exif);    /*    colore sfondo #2F4F4F; */
    margin: 0;
    margin-bottom: 20px;
	font-size: 16px;
	line-height: 1.5; /* 16px * 1.5 = 24px */
}

hcodice {
    text-align: center;
    margin-bottom: 30px;
	margin-top: 30px;
	font-size: 30px;
	padding: 5px;
    background: #808000;
    border: 0 solid #AAA;
    width: 100px;
}
form {
width:650px;
box-sizing: border-box;
margin: 10px auto; /* Centra il form orizzontalmente */
background: #DCDCDC;
padding: 25px;
outline: 25px green;
overflow: hidden;
-moz-border-radius: 20px;
-webkit-border-radius: 20px;
border-radius: 20px;
}

form.formselezione {
width: 250px;
box-sizing: border-box;
margin: 10px auto; /* Centra il form orizzontalmente */
background: var(--colore-sfondo);  /* colore sfondo pagina #2F4F4F;   red;   */
padding: 5px;
outline: 5px green;
overflow: hidden;
-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 10px;
}


input[type=text], input[type=password], input[type=number] {
width: 100%; 
padding: 8px;
font-size: large; 
margin: 5px 0;
}

input[type=text]:focus, input[type=password]:focus, input[type=number]:focus {
background-color: #f8f8f8;
}

textarea {
font-size: large; 
  width: 100%;
  height: 150px;
  padding: 8px 8px;
  box-sizing: border-box;
  border: 2px solid #ccc;
  border-radius: 4px;
  background-color: #ffffff;
  resize: none;
}

textarea:focus {background-color: #f8f8f8 ;}

input[type=submit], input[type=reset] {  /*  per il form mail e il form di pag_100.php  */
  font: 16px 'Comic Sans MS', sans-serif;
  background-color: #FFA500;
  font-weight: bold;
  color: white;
  padding: 16px 16px;
  text-decoration: none;
  margin: 4px 2px;
  width: 40%;
  cursor: pointer;
   border-radius: 5px;
 box-shadow:
 0px 0px 0px 1px #4e8381 inset,
 0px 0px 0px 2px #74b6b4 inset,
 4px 5px 10px 5px #36454F,    /* #36454F   #4a7c7b*/
 0px 5px 0px 0px #355655,
 0px 5px 0px 0px rgba(0,0,0,.15);}

input[type=button] {   /*  tutti i bottoni caricati dal DB  */
  font: 16px 'Comic Sans MS', sans-serif;
  background-color: #8B0000;
  font-weight: bold;
  color: white;
  padding: 16px 16px;
  text-decoration: none;
  margin: 4px 2px;
  width: 250;
  cursor: pointer;
   border-radius: 10px;
 box-shadow:
 0px 0px 0px 1px #4e8381 inset,
 0px 0px 0px 2px #74b6b4 inset,
 4px 5px 10px 5px #4a7c7b,  /* ombra X, ombra Y, sfocatura, diffusione */
 0px 5px 0px 0px #FFFFFF,  /*  riflesso luce*/
 0px 5px 0px 0px rgba(0,0,0,.15);
}

input.formselezione-submit {  /*  per i form interni delle aree riservate  */
  font: 16px 'Comic Sans MS', sans-serif;
  background-color: #FFA500;
  font-weight: bold;
  color: white;
  padding: 16px 16px;
  text-decoration: none;
  margin: 4px 2px;
  width: 80%;
  cursor: pointer;
   border-radius: 5px;
 box-shadow:
 0px 0px 0px 1px #4e8381 inset,
 0px 0px 0px 2px #74b6b4 inset,
 4px 5px 10px 5px #4a7c7b,  /* ombra X, ombra Y, sfocatura, diffusione */
 0px 5px 0px 0px #FFFFFF,  /*  riflesso luce*/
 0px 5px 0px 0px rgba(0,0,0,.15); }
 
input.formselezione-submit-disabilitato {       /* Esempio di come applicare lo stile a una classe chiamata "disabilitato" per i pulsanti di pag_131 */
  font: 16px 'Comic Sans MS', sans-serif;
  background-color: #FFA500;
  font-weight: bold;
  color: white;
  padding: 16px 16px;
  text-decoration: none;
  margin: 4px 2px;
  width: 80%;
  cursor: pointer;
   border-radius: 5px;
 box-shadow:
 0px 0px 0px 1px #4e8381 inset,
 0px 0px 0px 2px #74b6b4 inset,
 4px 5px 10px 5px #4a7c7b,  /* ombra X, ombra Y, sfocatura, diffusione */
 0px 5px 0px 0px #FFFFFF,  /*  riflesso luce*/
 0px 5px 0px 0px rgba(0,0,0,.15);

  pointer-events: none;
  cursor: default;
  opacity: 0.2; /* Opzionale: aggiunge un effetto visivo di disabilitazione */
}
 
img {
  /* width: 300px;
  height: auto; */
        /* border-radius: 50px; clip-path: circle(50%);  */ 
}

.imageborder { /*  border: 10px solid #000; padding: 15px;  */
 border-radius: 10px;
 box-shadow:
 0px 0px 0px 1px #4e8381 inset,
 0px 0px 0px 2px #74b6b4 inset,
 4px 5px 10px 5px #4a7c7b,  /* ombra X, ombra Y, sfocatura, diffusione */
 0px 5px 0px 0px #FFFFFF,  /*  riflesso luce*/
 0px 5px 0px 0px rgba(0,0,0,.15);
 }
 
/* Stili specifici per la teaxtarea 
//https://www.html.it/pag/18979/applicare-stili-a-campi-di-input-e-textarea/  

eliminare dalla pagina
<!DOCTYPE html>      altrimenti il css carica male i bottoni 

*/