<!DOCTYPE html>
<html>
<head>
    <style>
    #style1 {
        background-color: yellow;
        color:green;
    }
    #style2 {
        background-color: blue;
        color:red;
    }
    #style3 {
        background-color: purple;
        color:pink;
    }
    </style>
</head>
<body>
    O<span id="style1">n</span>e<span id="style2"> </span>t<span id="style2">w</span>o<span id="style3"> </span>t<span id="style3">h</span>re<span id="style3">e</span>
</body>
</html>