HOW TO MAKE HTML TEXT UPPERCASE – CAN USE IN MOST HTML
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<style type="text/css">
<!--
.allcaps {
font-variant: small-caps;
text-transform: uppercase;
}
-->
</style>

<p class="allcaps">This is all caps </>

HOW TO MAKE HTML TEXT LOWERCASE – CAN USE IN MOST HTML
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<style type="text/css">
<!--
.allcaps {
font-variant: small-caps;
text-transform: lowercase;
}
-->
</style>

<p class="allcaps">This is All caps </>

OR EASIER
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http://hscripts.com/tutorials/css/text-transform.php

INPUT:
TesTing TEXT TRANSform

<font style="text-transform: capitalize;">testing text transform </font>

OUTPUT:

Testing Text Transform

<font style="text-transform: uppercase;">testing text transform </font>

OUTPUT:

TESTING TEXT TRANSFORM

<font style="text-transform: lowercase;">TesTing TEXT TRANSform </font>

OUTPUT:

testing text transform

<font style="text-transform: none;"> TesTing TEXT TRANSform </font>

OUTPUT:

TesTing TEXT TRANSform