Customizer > Globals > Buttons
Color:
Normal:
Text Color: #ffffff
BG Color: rgba(234,234,234,0) = transparent
Hover:
Text Color: #a80529
BG Color: #fff
Border:
Width: 1px 1px 1px 1px
Color: #ffffff
Hover Color: #ffffff
Border Radius: 0
Padding: 20px 40px 20px 40px
—-
Page edit > Gutenberg Editor
Add Block > Design > Button
Styles: Outline
Text Color: none
BG Color: none
—-
<div class="wp-block-buttons">
<div class="wp-block-button is-style-outline">
<a class="wp-block-button__link">Learn more...</a>
</div>
</div>
../wp-includes/css/dist/block-library/style.min.css:1
.wp-block-button.is-style-outline .wp-block-button__link, .wp-block-button__link.is-style-outline {
color: #32373c;
background-color: transparent;
border: 2px solid;
}
../wp-content/themes/child_theme_name/style.css:117
.wp-block-button .wp-block-button__link {
padding-top: 20px;
padding-right: 40px;
padding-bottom: 20px;
padding-left: 40px;
}
../index:18
.wp-block-button .wp-block-button__link {
border-style: solid;
border-top-width: 1px;
border-right-width: 1px;
border-left-width: 1px;
border-bottom-width: 1px;
border-color: #ffffff;
color: #ffffff;
font-family: inherit;
font-weight: inherit;
line-height: 1;
font-size: 18px;
font-size: 1.125rem;
border-radius: 0;
padding-top: 20px;
padding-right: 40px;
padding-bottom: 20px;
padding-left: 40px;
}