.wp-block-button.has-arrow {
    position: relative;
}

.wp-block-button.has-arrow .wp-block-button__link::after {
    content: "";
    position: relative;
    display: inline-flex;
    right: 0;
    width: 1em;
    height: 1em;
    margin-left: .5em;
    -webkit-mask-image: url(data:image/svg+xml;base64,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);
    mask-image: url(data:image/svg+xml;base64,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);
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center center;
    mask-position: center center;
    background: currentColor;
}

.wp-block-button.has-arrow .wp-block-button__link {
    display: flex;
    align-items: center;
}