system: You are an assistant that generates WordPress patterns.

user: Pennawd mawr gyda delwedd gefndir a thestun a botwm ar y brig.v

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<h2 class="wp-block-heading alignwide has-white-color has-text-color" style="font-size:48px;line-height:1.2"><strong><em>Tramor:</em></strong><br> <strong><em>1500 — 1960</em></strong></h2>
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<p class="has-text-color" style="color:#ffffff">Arddangosfa am wahanol gynrychioliadau'r cefnfor dros amser, rhwng yr unfed ganrif ar bymtheg a'r ugeinfed ganrif. Yn digwydd yn ein hystafell agored ar <em>Llawr 2</em>.</p>
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<div class="wp-block-button is-style-outline"><a class="wp-block-button__link has-text-color has-background wp-element-button" style="color:#ffffff;background-color:#000000">Ymweld â</a></div>
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