body{
    background-image: url(flower-background.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    text-align: center;
}

h1{
	font-family: helvetica;
	font-weight: lighter;
	font-size: 45px;
}

h1{
  animation: color-change 3s infinite;
}

@keyframes color-change {
  0% { color: orange; }
  50% { color: yellow; }
  100% { color: pink; }
}

.header{
	display: center;
	max-width: 550px;
	background-color: black;
	padding: 10px 40px;
	margin: 40px auto;
	border-radius: 1em;
}

h2{
	font-family: helvetica;
	font-weight: lighter;
	color: black;
	font-size: 25px;
}

.subheader{
	display: center;
	max-width: 750px;
	background-color: #b5d184;
	padding: 10px 40px;
	margin: 40px auto;
	border-radius: 1em;
	border-style: dotted;
}

p{
	font-family: helvetica;
	font-weight: lighter;
	color: black;
	font-size: 15px;
}

.text{
	display: flex;
	max-width: 750px;
	background-color: #e69ac8;
	padding: 10px 40px;
	margin: 40px auto;
	border-radius: 1em;
	border-style: dotted;
}

.image{
	padding-bottom: 60px;
}

.grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
}

.unit {
	width: 150px;
	height: 100px;
	background-color: #d4660d;
	margin: 10px;
	border-radius: 1em;
	border-style: dotted;
}

.topic{
	font-family: helvetica;
	font-weight: lighter;
	font-size: 20px;
	text-align: center;
	padding: 20px;
	cursor: pointer;
}

a:link{
	text-decoration: none;
}

a{
	color: inherit;
	animation: color-change 5s infinite;
}

.list{
	max-width: 750px;
	background-color: #b5d184;
	padding: 10px 40px;
	margin: 40px auto;
	border-radius: 1em;
	border-style: dotted;
}

ol{
	font-family: helvetica;
	font-weight: lighter;
	text-align: left;
}

.button{
	font-size: 24px;
	border-radius: 50%;
	background-color: pink;
	color: black;
	border: 4px solid black;
	padding: 30px;
	width: 50px;
	text-decoration: none;
	transform: translate(30%, -610%);
	transform; 
}

.popup {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.popup .popuptext {
  visibility: hidden;
  width: 160px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 8px 0;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -80px;
}

.popup{
	font-family: brush script mt;
	font-size: 30px;
	color: black;
}

.popup .popuptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: purple transparent transparent transparent;
}

.popup .show {
  visibility: visible;
  -webkit-animation: fadeIn 1s;
  animation: fadeIn 1s;
  font-size: 20px;
  color: lavender;
  background-color: purple;
  font-family: helvetica;
  font-weight: lighter;
}

@-webkit-keyframes fadeIn {
  from {opacity: 0;} 
  to {opacity: 1;}
}

@keyframes fadeIn {
  from {opacity: 0;}
  to {opacity:1 ;}
}

@media screen and (min-width: 768px) {
	
	h1{
		font-size: 60px;
	}
	
	h2{
		font-size: 30px;
	}
	
	p{
		font-size: 20px;
	}
	
	.container{

		align-items: row;
	}
	
	.unit{
		width: 300px;					
	}
	
	.button{
		transform: translate(400%, -600%);
	}
	
	.topic{
		font-size: 30px;
		margin-top: 10px;
	}
}