body{
    background-color: ivory;
    font-family: arial, helvetica, sans-serif;
    padding: 10px;
    line-height: 1.5;
    font-size: 18px;
}

div, header, footer, nav, main, aside{
    overflow: auto;
    border: 1px;
    margin: 10px;
    padding: 10px;
}

footer{
    background-color:lavender;
}

main{
    background-color:palegreen;
}

div{
    background-color:lightblue;
}

aside{
    background-color:lightpink;
}
.container{
    width: 90%;
    margin:auto;
    padding: 9px;
    border: 6px solid burlywood;
    background-color:palegreen;
    max-width:970px;
}

.container .container{
    border: 4px solid burlywood;
    border-radius: 20px;
}

#feature{
    border:6px solid lime;
    background-color:ivory;
    font-size:2em;
}

#note{
    color:pink;
    font-size:1.1em;
}

nav{
    text-align: center;
    background-color:lightyellow;

h2{
    text-align: left;
}

.container p{
    margin-left: 15px;
}

header{
    background-color:lightgrey;
}

mark {
  background-color:orange;
  color: black;
}

i {
    color:pink; 
    font-style:italic;

}