<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.letter {
color: red;
font-size: 300%; /* Font size in percents */
position: relative; /* Relative positioning */
top: 7px; /* Move from above */
}
</style>
</head>
<body>
<p>
<span class="letter">О</span>
She brought in disgusting, disturbing yellow flowers in her hands.
And these flowers stood out on her black coat.
</p>
<p>Michael Bulgakov</p>
</body>
</html>