add default box shadow reset

Author: RobinMalfait

Diff for: src/index.js

@@ -40,6 +40,7 @@ const forms = plugin.withOptions(function (options = { strategy: 'base' }) {
           'padding-left': spacing[3],
           'font-size': baseFontSize,
           'line-height': baseLineHeight,
+          '--tw-shadow': '0 0 #0000',
           '&:focus': {
             outline: outline.none[0],
             'outline-offset': outline.none[1],
@@ -94,6 +95,7 @@ const forms = plugin.withOptions(function (options = { strategy: 'base' }) {
           'background-size': `1.5em 1.5em`,
           'padding-right': spacing[10],
           'color-adjust': `exact`,
+          '--tw-shadow': '0 0 #0000',
         },
       },
       {
@@ -126,6 +128,7 @@ const forms = plugin.withOptions(function (options = { strategy: 'base' }) {
           'background-color': '#fff',
           'border-color': theme('colors.gray.500', colors.gray[500]),
           'border-width': borderWidth['DEFAULT'],
+          '--tw-shadow': '0 0 #0000',
         },
       },
       {
@@ -237,6 +240,7 @@ const forms = plugin.withOptions(function (options = { strategy: 'base' }) {
           padding: '0',
           'font-size': 'unset',
           'line-height': 'inherit',
+          '--tw-shadow': '0 0 #0000',
         },
       },
       {