table#lihtne{
    /*html failis id=Lihtne*/
    width:20%;
    border: 1px solid black;
    text-align: center;/*teksti joondamine keskele*/
    padding: 10px; /*vahe tekstist ääriseni*/
    /*border-collapse: collapse;*/
}
/* tabeli pseudoelementide kasutamine*/
#lihtne tr:nth-child(1) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
  background-color: lightgray;
}
#lihtne tr:nth-child(1) td:nth-child(2){/*2.rida 2.lahter-ячейка*/
    background-color: yellow;
}
#lihtne tr:nth-child(1) td:nth-child(3){/*3.rida 3.lahter-ячейка*/
    background-color: bisque;
}
#lihtne tr:nth-child(2) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
    background-color: lightgray;
}
#lihtne tr:nth-child(2) td:nth-child(2){/*2.rida 2.lahter-ячейка*/
    background-color: yellow;
}
#lihtne tr:nth-child(2) td:nth-child(3){/*3.rida 3.lahter-ячейка*/
    background-color: lightgray;
}

table#keeruline1, table#keeruline1 td{
    /*html failis id=keerulina1*/
    width:45%;
    border: 1px solid black;
    text-align: center;/*teksti joondamine keskele*/
    padding: 2px; /*vahe tekstist ääriseni*/
    /*border-collapse: collapse;*/
    background-color: lavender;
}
table#keeruline2, table#keeruline2 td{
    /*html failis id=keerulina1*/
    width:20%;
    border: 1px solid black;
    text-align: center;/*teksti joondamine keskele*/
    padding: 2px; /*vahe tekstist ääriseni*/
    /*border-collapse: collapse;*/
    background-color: pink;
}
table#keeruline3, table#keeruline3 td{
    /*html failis id=keerulina3*/
    width:15%;
    border: 1px solid black;
    text-align: center;/*teksti joondamine keskele*/
    padding: 2px; /*vahe tekstist ääriseni*/
    /*border-collapse: collapse;*/
    background-color: lavender;
}
table#keeruline4, table#keeruline4 td{
    width:20%;
    border: 1px solid black;
    text-align: center;
    padding: 3px;
    background-color: hotpink;
}
#keeruline4 tr:nth-child(1) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
    background-color: yellow;
    width: 5%;
}
#keeruline4 tr:nth-child(1) td:nth-child(2){/*1.rida 2.lahter-ячейка*/
    background-color: lightblue;
    width: 5%;
}
#keeruline4 tr:nth-child(1) td:nth-child(3){/*1.rida 3.lahter-ячейка*/
    background-color: fuchsia;
    width: 5%;
}
#keeruline4 tr:nth-child(2) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
    background-color: palegreen;
}
#keeruline4 tr:nth-child(2) td:nth-child(2){/*1.rida 2.lahter-ячейка*/
    background-color: khaki;
    width: 20%;
}
#keeruline4 tr:nth-child(2) td:nth-child(3){/*1.rida 3.lahter-ячейка*/
    background-color: greenyellow;
    width: 20%;
}
#keeruline4 tr:nth-child(3) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
    background-color: navajowhite;
    width: 20%;
}
#keeruline4 tr:nth-child(3) td:nth-child(2){/*1.rida 2.lahter-ячейка*/
    background-color: maroon;
}
#keeruline4 tr:nth-child(3) td:nth-child(3){/*1.rida 3.lahter-ячейка*/
    background-color: olive;
}
#keeruline4 tr:nth-child(4) td:nth-child(1){/*1.rida 1.lahter-ячейка*/
     background-color: lightgrey;
}