syncsarl
Hi
For the PC its working fine.
For mobile view kindly use this code
@media(max-width:488px){.item-page .com-content-article__body>p:first-child::first-letter {
color: #212529;
font-family: var(--body-font-family);
font-size: 14px;
padding-top: 6px;
}}
In mobile the font size and style is different.
Do not forget to clear cache if code not work,
This code is tested on your site and work fine.