body.a1
		{ 
			background: url("./img/a01.jpg"); 
			background-color: #000000; 
			background-size: cover;
			background-repeat: no-repeat;
		} 
body.a2
{ 
  background: url("./img/a02.jpg"); 
  background-color: #000000; 
  background-size: cover;
  background-repeat: no-repeat;
}
body.a3
{ 
  background: url("./img/a03.jpg"); 
  background-color: #000000; 
  background-size: cover;
  background-repeat: no-repeat;
}
body.a4
{ 
  background: url("./img/a04.jpg"); 
  background-color: #000000; 
  background-size: cover;
  background-repeat: no-repeat;
}
table.a {
   background-color: #f2f2f2;
   opacity: 0.8;
   border-collapse: collapse;
   border: none;
 }
 thead.a {
   background-color: #e2e2e2;
   opacity: 0.8;
 }
 tfoot.a {
   background-color: #f2f2f2;
   opacity: 0.8;
   font-size: 80%;
   border-top: 1px solid #999;
 }
 td.a, th.a {
   font-family: Arial, Helvetica, sans-serif;
	font-size: 33px;
	letter-spacing: 1.6px;
	word-spacing: 1.4px;
	color: #000000;
	font-weight: 400;
	text-decoration: #000000;
	font-style: normal;
	font-variant: normal;
	text-transform: none;
   opacity: 0.8;
   text-align: left;
   padding: 0.5em 1em;
 }
 td.aa, th.aa {
   	opacity: 0.8;
   	text-align: right;
   	padding: 0.5em 1em;
 }
 td.b {
   font-family: Arial, Helvetica, sans-serif;
	font-size: 33px;
	letter-spacing: 1.6px;
	word-spacing: 1.4px;
	color: #000000;
	font-weight: 400;
	text-decoration: #000000;
	font-style: normal;
	font-variant: normal;
	text-transform: none;
   text-align: left;
 }
 
* {
  box-sizing: border-box;
}

input[type=text], select, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  resize: vertical;
}

label {
  padding: 12px 12px 12px 0;
  display: inline-block;
}

input[type=submit] {
  background-color: #4CAF50;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  float: right;
}

input[type=submit]:hover {
  background-color: #45a049;
}

.container {
  border-radius: 5px;
  
  padding: 20px;
}

.col-25 {
  float: left;
  width: 50%;
  margin-top: 6px;
}

.col-75 {
  float: left;
  width: 50%;
  margin-top: 6px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

@media screen and (max-width: 600px) {
  .col-25, .col-75, input[type=submit] {
    width: 10%;
    margin-top: 0;
  }
}