Hello,

I have added for you
.woocommerce .stt-single-product .product .summary.entry-summary .price bdi {font-weight: bold !important;}
Please feel free to contact us if you need any further information
Thank You and Best Regards!

I had already tried it but nothing happened. I tried with 900 and 300 to check it out, but in vain.

Hello,

Use this CustomCSS for the same class

font-weight: 900 !important;
Font-weight 400 is normal while 900 is bold
Please feel free to contact us if you need any further information

Thank You and Best Regards!

Thanks, and what I have to change to make the price bold?

Hello,

You can use this Custom CSS. Change 3rem and 1.5rem to the preferred number
/*Product Title*/
.woocommerce .stt-single-product .product .summary.entry-summary .product_title {font-size: 3rem !important;}
/*Price*/
.woocommerce .stt-single-product .product .summary.entry-summary .price {font-size: 1.5rem !important;}
Please feel free to contact us if you need any further information
Thank You and Best Regards!

First of all I want to resize the fonts of product title and price in Product Page.

Λάμπα E27 G125 Deco Soft Letter Love LED FILAMENT 4W AC 85-265V Edison Retro με Διάφανο Γυαλί Ultra Θερμό Λευκό 2200K – My Shop (mslogic.eu)

Please advise

Hello,

Could you give the URL for a better understanding? Which shop style would you like to setup
https://fashion-classic.wooler.co/shop
https://fashion-default.wooler.co/shop
https://fashion.wooler.co/shop
https://tech.wooler.co/shop
https://furniture.wooler.co/shop
Please feel free to contact us if you need any further information
Thank You and Best Regards!