fix buttons

add_action( 'amp_post_template_css', function() {
    ?>
    /* Put Custom CSS below */
    .amp-wp-share .fa {
        display: inline-block;
        font: normal normal normal 14px/1 FontAwesome;
        text-rendering: auto;
        -webkit-font-smoothing: antialiased;
        font-size: 16px;
    }
    .amp-wp-share .jeg_sharelist a {
        align-items: center;
    }
    <?php
} );