The color appearing are inversed

#1

CSS
div{
height: 150;
width: 150;
border: 1px solid black;
margin-bottom: 2px;
}

div:nth-last-of-type(1){
background-color: red;
}

div:nth-last-of-type(2){
background-color: #11ee22;
}

div:nth-last-of-type(3){
background-color: rgb(0, 0, 255);
}

div:nth-last-of-type(4){
background-color: rgba(255, 255, 255, 0.5);
}

HTML

    <div></div>
    <div></div>
    <div></div>
    <div></div>

</body>
#2

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