body {
	font-family: Helvetica, Arial, Sans-Serif;
}
div[class*='box-'] {
	box-sizing: border-box;
}
.box-1{
	color: red;
}
.box-2{
	color: #00FF00;
}
.box-3{
	font-weight: bold;
	color: rgb(0,0,255);
}
.box-4{
	font-size: 18px;
}
.box-5{
	font-size: 24px;
	font-style: italic;
}
.box-6{
	color: white;
	background-color: brown;
}
.box-7{
	width: 400px;
	height: 300px;
	border: 1px solid purple;
	padding: 30px;
}
.box-8{
	width: 500px;
	height: 200px;
	background-color: red;
	margin: 100px;
}
.box-9{
	display: none;
}
.box-10{
	width: 100%;
	height: 150px;
	background-color: blue;
	padding: 50px;
	border: 10px solid yellow;
	
}
.box-11{
	visibility: hidden;
}
.box-12{
	width: 200px;
	height: 500px;
	background-color: green;
	opacity: 0.5;
}
.box-13{
	width: 400px;
	height: 300px;
	position: relative;
	background-color: lightblue;

}
.box-14{
	width: 50px;
	height: 50px;
	position: absolute;
	top: 50px;
	right: 10px;
	background-color: pink;
}

.box-15{
	width: 200px;
	height: 500px;
	background-color: blue;
	margin-top: 200px;
	cursor: pointer;
}


.paragraph-1{
	line-height: 32px;
	text-align: center;
}
.paragraph-2{
	text-align: justify;
	text-transform: uppercase;
}

.button-1{
	width: 300px;
	height: 100px;

}
.button-1:active{
	color:blue;
}
.button-2{
	width: 200px;
	height: 50px;
}
.button-2:hover{
	background:brown;
}