.back1{background-color:#BFEFDF}
.back2{background-color:#B0C4D5}
.back3{background-color:#E0FFFF}

body {
margin: 3%;
}

h2.sample1 {
padding: 0.2em 0.1em;
border-style: none none solid solid;
}

h3 {
background-color:#9999FF
border-bottom-coloer: #9999FF;
border-bottom-style: groove;
}