* {
	box-sizing: border-box;
}

body {
  font-family: Sans-Serif;
}

#colorName {
	color:red;
}

#colorRGB {
	color:rgb(0,255,0);
}

#colorHex {
	color:#0000ff;
	font-weight: bold;
}

#text-18 {
	font-size: 18px;
}

#text-24 {
	font-size: 24px;
	font-style: italic;
}

#textWhite {
	color:white;
	background-color: brown;
}

#par-0 {
	text-align: center;
	line-height: 32px;
}

#par-1 {
	text-align: justify;
    text-transform: uppercase;
}

#box-0 {
	width: 400px;
	height: 300px;
	border: 1px solid purple;
	padding: 30px 30px 30px 30px;
}

#box-1 {
	width: 500px;
	height: 200px;
	background-color: red;
	border: 1px solid purple;
	margin: 100px 100px 100px 100px;
}

#textHide {
	color:transparent;
}

#box-2 {
	width: 100%;
	height: 150px;
	background-color: blue;
	border: 10px solid yellow;
	padding: 50px 50px 50px 50px;
}

#textHide {
	color:transparent;
}

#box-3 {
	width: 200px;
	height: 500px;
	background-color: green;
	opacity: 0.5;
}

#box-4 {
	width: 400px;
	height: 300px;
	position: relative;
	background-color: lightblue;
}

#box-5 {
	width: 50px;
	height: 50px;
	position: absolute;
	top:50px;
	right:10px;
	background-color: pink;
}

#btn-0 {
	width: 300px;
	height: 100px;
}

#btn-0:active {
	color: blue;
}

#btn-1 {
	width: 200px;
	height: 50px;
}

#btn-1:hover {
	background-color: brown;
}

#box-6 {
	width: 200px;
	height: 500px;
	background-color: blue;
	margin: 200px 0px 0px 0px;
	cursor: pointer;
}