feat: make all button fontsizes 16px by default

packages/instant/src/components/buy_button.tsx

@@ -43,7 +43,6 @@ export class BuyButton extends React.Component<BuyButtonProps> {
                 onClick={this._handleClick}
                 isDisabled={shouldDisableButton}
                 fontColor={ColorOption.white}
-                fontSize="16px"
             >
                 Buy
             </Button>

packages/instant/src/components/buy_order_state_buttons.tsx

@@ -35,7 +35,7 @@ export const BuyOrderStateButtons: React.StatelessComponent<BuyOrderStateButtonP
     if (props.buyOrderProcessingState === OrderProcessState.Failure) {
         return (
             <Flex justify="space-between">
-                <Button width="48%" onClick={props.onRetry} fontColor={ColorOption.white} fontSize="16px">
+                <Button width="48%" onClick={props.onRetry} fontColor={ColorOption.white}>
                     Back
                 </Button>
                 <SecondaryButton width="48%" onClick={props.onViewTransaction}>

packages/instant/src/components/install_wallet_panel_content.tsx

@@ -22,7 +22,6 @@ export const InstallWalletPanelContent: React.StatelessComponent<InstallWalletPa
             <Button
                 href={META_MASK_CHROME_STORE_URL}
                 width="100%"
-                fontSize="16px"
                 fontColor={ColorOption.white}
                 backgroundColor={ColorOption.darkOrange}
             >

packages/instant/src/components/placing_order_button.tsx

@@ -7,7 +7,7 @@ import { Container } from './ui/container';
 import { Spinner } from './ui/spinner';
 
 export const PlacingOrderButton: React.StatelessComponent<{}> = props => (
-    <Button isDisabled={true} width="100%" fontColor={ColorOption.white} fontSize="16px">
+    <Button isDisabled={true} width="100%" fontColor={ColorOption.white}>
         <Container display="inline-block" position="relative" top="3px" marginRight="8px">
             <Spinner widthPx={16} heightPx={16} />
         </Container>

packages/instant/src/components/secondary_button.tsx

@@ -15,8 +15,6 @@ export const SecondaryButton: React.StatelessComponent<SecondaryButtonProps> = p
             borderColor={ColorOption.lightGrey}
             width={props.width}
             onClick={props.onClick}
-            fontColor={ColorOption.primaryColor}
-            fontSize="16px"
             {...buttonProps}
         >
             {props.children}

packages/instant/src/components/ui/button.tsx

@@ -81,7 +81,7 @@ Button.defaultProps = {
     width: 'auto',
     isDisabled: false,
     padding: '.82em 1.2em',
-    fontSize: '15px',
+    fontSize: '16px',
 };
 
 Button.displayName = 'Button';