::-moz-selection {
background: #D93031;
color:#EACE86;
}
::selection {
background: #D93031;
color: #EACE86;
}
p {
color:#E9EDD9;
}
body {
background-color:#36AA7B;
}
<!DOCTYPE html>
<html>
<body>
<p id="p1">Select me!</p>
<p id="p2">And me!</p>
<p id="p3">Me too!</p>
</body>
</html>