Read More

<body onload="document.getElementById('p1').style.visibility='hidden'" />

This is some text...

<input type="button" value="Click to Read More" onclick="document.getElementById('p1').style.visibility='visible'" />

<input type="button" value="Click to Hide text" onclick="document.getElementById('p1').style.visibility='hidden'" />

<p id="p1">This is a text. This is a text. This is a text. This is a text. This is a text. This is a text. This is a text.</p>

With some text formatting

<body onload="document.getElementById('p1').style.visibility='hidden'" />

This is some text...

<input type="button" value="Click to Read More" onclick="document.getElementById('p1').style.visibility='visible'" />

<input type="button" value="Click to Hide text" onclick="document.getElementById('p1').style.visibility='hidden'" />

<p id="p1" STYLE="font-weight: bolder;font-size: x-large;font-family: Arial, Helvetica, Sans-Serif;">This is a text. This is a text. This is a text. This is a text. This is a text. This is a text. This is a text.</p>