style.css

@import url("https://fonts.googleapis.com/css2?family=Red+Hat+Display:wght@500;700;900&display=swap");
*, *::before, *::after{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body{
	background:hsl(225, 100%, 94%) url('images/pattern-background-desktop.svg') no-repeat;
	font-family: 'Red Hat Display', sans-serif;
	background-size:contain;
	font-size: 16px;
}

.main{
	text-align: center;
	background-color: white;
	border-radius: 20px;
	margin: 12.5vh auto;
	max-width: 400px;
	box-shadow: 0 18px 40px -12px rgba(56, 41, 224,0.25);
}
.cimg{
	max-width: 100%;
	border-top-left-radius: inherit;
	border-top-right-radius: inherit;

}
#content{
	padding: 25px;
}
#head1{
	font-weight: 900;
}
#para{
	font-size: 16px;
	color: #7280a7;
	margin: 10px 25px 15px 25px;
}

#buy-plan-box-1{
	background-color: #f5f7ff;
	display: flex;
	border-radius: 10px;
	justify-content: space-between;
	align-items: center;
	text-align: start;
	margin: 0px 25px 25px 25px;
	padding: 15px;
}

#buy-plan-box-2{
	display: flex;
	align-items: center;
	color: #7280a7;
}
#aplan{
	padding-left: 15px;
}
#aplan::first-line{
	color: black;
	font-weight: 900;
}
#change{
	color: #3829e0;
	font-weight: 700;
	flex-shrink: 4;
}
#change a:hover{
	text-decoration: none;
	color: rgba(56, 41, 224,0.6);
}

#flex-box-2{
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	margin: 0px 25px 20px 25px;
}
#flex-box-2 > *{
	height: 40px;
	line-height: 20px;
	padding: 10px 0;
	text-decoration: none;
	border-radius: 10px;
	border:none;
	font-weight: 700;
	margin-bottom: 20px;
}
#pay-btn{
	background-color: #3829e0;
	color: white;
	box-shadow: 5px 10px 18px #e0e8ff;
}
#pay-btn:hover{
	background-color:  rgba(56, 41, 224,0.6);
}
#cancel-btn{
	color: #7280a7;
}
#cancel-btn:hover{
	color: rgb(31, 47, 86);
}

@media screen and (max-width: 375px) {
  body {
    background: #e0e8ff url(images/pattern-background-mobile.svg) no-repeat;
	background-size:contain;
    
  }
  .main{
  	width: 300px;
  }
}