This is how you use html to produce alternate colours in your text:

<span style = "color:red;">H</span><span style = "color:#FF0099;">o</span><span style = "color:#0033FF;">w </span><span style = "color:#006600;">a</span><span style = "color:#FF6633;">b</span><span style = "color:#CC99FF;">o</span><span style = "color:#99CC99;">u</span><span style = "color:#FFCCFF;">t </span><span style = "color:#FFCC33;">s</span><span style = "color:#33FFFF;">o</span><span style = "color:#FF9999">m</span><span style = "color:#9400D3">e</span><span style = "color:#008B8B;">t</span><span style = "color:#FF7F50;">h</span><span style = "color:#F5F5DC;">i</span><span style = "color:red">n</span><span style = "color:#0000CD;">g </span><span style = "color:#008000;">l</span><span style = "color:#FFE4E1;">i</span><span style = "color:#D87093;">k</span><span style = "color:#3CB371;">e </span><span style = "color:#800000;">t</span><span style = "color:#4169E1;">h</span><span style = "color:#DDA0DD;">i</span><span style = "color:red;">s</span>?

Produces this:

How about something like this?