body{
    margin: 0;
    padding: 0;
    font-size: 16px;
}

section{
    margin-bottom:20px; 
}

section:nth-of-type(2){
    margin-top: 20px;

}

div{
    padding-top: 20px;
    background-color: aqua;
}

section, div{
    padding-bottom: 5px;
}


div p{
    font-size: 20px;
}

section:nth-of-type(2) p:nth-child(2), p:nth-of-type(3){
    text-indent: 40px;
}

section:nth-of-type(4) ul:nth-of-type(1) li:nth-of-type(2){
    text-decoration: underline;
}

section:nth-of-type(4) ul:nth-of-type(1) li:nth-of-type(2):hover{
    text-decoration: line-through;
}

section:nth-of-type(3):hover ~ section:nth-of-type(4){
        background-color: yellow;
    
}

/* SOME CSS PROPERTIES YOU COULD USE

{
    margin: 20px;
    margin: 20%;

    margin-left: ;
    margin-right: ;

    padding-left: 20px;
    padding-right: 20%;
    padding: 0 50px;
    padding: 10px 30px 50px 70px;

    border-width: ;
    border-style: ;
    border-color: ;
    border: 

    font-size: ;
    line-height: ;
    letter-spacing: ;

    text-transform: lowercase;
    text-indent 20px;
    columns: 2;
    column-gap:;

    text-decoration:;
    text-decoration-line: ;
    
    list-style: ;
}

*/