Inserting styles.

Hi,

I've downloaded these styles, al based on Skolar Sans.

.regular-paragraph{

font-family: skolar-sans-latin, sans-serif;

font-weight: 400;

font-style: normal;

}

.spanBold{

font-family: skolar-sans-latin, sans-serif;

font-weight: 700;

font-style: normal;

}

.spanItalic{

font-family: skolar-sans-latin, sans-serif;

font-weight: 400;

font-style: italic;

}

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This is regular paragraph fo reading. If I want to just insert an emphasized word, or a word with a strong tag, how should I do it properly? Just wrapping the emphasized word into a <em> tag and the strong word into a <strong> tag? or should I use <span> tags with the original classes declared on style sheet?

<span class="spanItalic">emphasized</span> like this? or just <em>emphasized</em>? Orientations please. Thanks a lot.