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Hi, I did this to increase the description but now its popping out of the block, how do I increase it. 

Prestashop 1.7

        {block name='product_name'}
          {if $page.page_name == 'index'}
            <h3 class="h3 product-title" itemprop="name"><a href="{$product.url}" itemprop="url" content="{$product.url}">{$product.name|truncate:40:'...'}</a></h3>
          {else}
            <h2 class="h3 product-title" itemprop="name"><a href="{$product.url}" itemprop="url" content="{$product.url}">{$product.name|truncate:40:'...'}</a></h2>
          {/if}
        {/block}

how do I make the block bigger,