A method of augmenting presentation of text in a document includes obtaining a DOM tree associated with a markup of the document, searching a plurality of nodes of the DOM tree for a target text string such that a child node is searched after searching a corresponding parent node. A target text node of the DOM tree is identified, the target text node including an entirety of the target text string and having no child nodes including the entirety of the target text string. Responsive to identifying the target text node, the markup is modified in one of: the target text node and a child node of the target text node including a portion of the target text string. The markup is modified to augment presentation of the target text string in the document. A system for augmenting presentation of text in a document is also disclosed.