body {
  margin-left: 3em;
  margin-right: 2em;
  max-width: 900px;
}
.ch {
	border: solid 1px black;
	border-radius: 8px;
	margin-right: 1em;
	text-align: justify;
}
.bt {
	color: blak !important;
	background-color: lightgrey;
	cursor: pointer;
	padding: 8px;
	border: solid 1px white;
	margin-bottom: 1em;
}
.bt:hover {
	color: white !important;
	background-color: grey;
	cursor: pointer;
	padding: 8px;
	border: solid 1px white;
}
.h1 {
	color: red;
	font-size: large;
	border: solid 1px black;
	border-radius: 16px;
	width: 100%;
	padding: 8px;
	background-color: whitesmoke;
}
.h2 {
	color: green;
}
.h3, .pt {
	color: blueviolet;
}
.ng {
	font-weight: bold;
}
.ct {
	text-align: center;
}
.iz {
	text-align: left;
}
.dr {
	text-align: right;
}
.tp {
	color: blue; 
	border: solid 2px blue;
	text-align: justify;
}
.tm {
	color: green; 
	text-align: justify;
	font-size: 80%;
	font-style: italic;
}
.ch, .pf {
	text-align: justify;
}
.pt {
	color: blue;
	border: dotted 1px blue;
}
#logo {
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  height: 5em;
  background: #498b2a;
}
#img-logo {
  margin-left: 3em;
  height: 4.5em;
}
h1 {
	font-size: 1.5em;
	padding: 1em;
	color: #2b7dc4;
}