Hide amount selection drop-down menu
First, ensure that the default amount is specified under Products > PW Gift Card > Default so that it is automatically selected when the customer arrives on the gift card product.
Then you can hide the Select Amount drop down menu by taking the following steps.
If you have the PW Gift Cards Pro version:
1. Log into your WordPress admin area.
2. Click on the Products menu on the left and edit the gift card product.
3. Check the box “Hide amount select” on the gift card product and save.
If you do not have the Pro version:
1. Log into your WordPress Admin area.
2. Click on Appearance > Customize > Additional CSS (note: not every theme has this setting, though most do.)
3. Paste the following CSS into the field and save:
.product-type-pw-gift-card .variations { display: none !important; }