style.css

body{
	background: #B3E5FC;	
}
#wrapper{
  height: 615px;
    width: 800px;
    background: #B3E5FC;
    margin: 0 auto;
}

#task1, #task2, #task3, #task4{
	margin: 10px 20px;
	color: #FFFFFF;
	border-bottom-style: solid;
}

#task1 h2, #task2 h2, #task3 h2, #task4 h2{
	margin: 10px 40%;
}

#task1 form, #task2 form, #task3 form, #task4 form{
	margin: 10px 40px;
	
}

#task1 form #button1, #task2 form #button1, #task3 form #button1, #task4 form #button1{
	margin-left: 120px;
	margin-top: 10px;
}

#task1 form #button2, #task2 form #button2, #task3 form #button2, #task4 form #button2{
	margin-left: 200px;
}

#task3 form #button2{
	margin-left: 120px;
}

#task4 form #button2{
	margin-left: 130px;
}

#task1{
	background: #0288D1;
}

#task2{
	background: #03A9F4;
}

#task3{
	background: #00BCD4; 
}

#task4{
	background: #0288D1;
}

#task1 input{
	margin-left: 30px;
}

input#birthYear{
	margin-left: 45px;
}

#task2 input{
	margin-left: 60px;
}

input#age{
	margin-left: 86px;
}

#task3 input{
	margin-left: 65px;
}

#task4 input{
	margin-left: 95px;
}

input#celsius{
	margin-left: 93px;
}