src/content_script.css

body {
  --fbc-blue-60: #0060df;
  --fbc-blue-70: #003eaa;
  --fbc-gray-20: #ededf0;
  --fbc-light-gray: #F0F0F4;
  --fbc-white: #ffffff;
  --fbc-transition: all .15s cubic-bezier(.07,.95,0,1);
  --fbc-borders: 1px solid #ededf0;
  --fbc-primary-text: #15141A;
  --fbc-secondary-text: #5B5B66;
  --fbc-font-size: 13px;
}

.fbc-container {
  font-size: var(--fbc-font-size);
  font-weight: 400;
  color: var(--fbc-primary-text);
  background: var(--fbc-white);
  font-family: "SF Pro Text", 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* Button Replacement */
.fbc-loginButton {
	background-size: contain;
	background-position: center;
	background-repeat: none;
	cursor: pointer;
}

.fbc-loginButton.fbc-size-large.fbc-button-type-continue_with {
	height: 40px;
	width: 252px;
	background-image: url(/img/login_continue_large.png);
}

.fbc-loginButton.fbc-size-medium.fbc-button-type-continue_with {
	height: 28px;
	width: 180px;
	background-image: url(/img/login_continue_medium.png);
}

.fbc-loginButton.fbc-size-small.fbc-button-type-continue_with {
	height: 20px;
	width: 154px;
	background-image: url(/img/login_continue_small.png);
}

.fbc-loginButton.fbc-size-large.fbc-button-type-login_width {
	height: 40px;
	width: 236px;
	background-image: url(/img/login_login_large.png);
}

.fbc-loginButton.fbc-size-medium.fbc-button-type-login_width {
	height: 28px;
	width: 166px;
	background-image: url(/img/login_login_medium.png);
}

.fbc-loginButton.fbc-size-small.fbc-button-type-login_width {
	height: 20px;
	width: 62px;
	background-image: url(/img/login_login_small.png);
}

/* Overlay */

.fbc-badge {
	all: initial;
	position: absolute;
	z-index: 100;
	transition: opacity 0.2s ease-out;
	--fbc-transition: all .15s cubic-bezier(.07,.95,0,1)
}

.fbc-badge.fbc-badge-disabled {
	display: none;
	visibility: hidden;
	opacity: 0;
}

.fbc-badge-fence {
	display: block;
	box-shadow: 0 0 0 1px rgba(0, 0, 0, .15);
	background-position: center center;
	background-size: 16px auto, 100%;
	background-image: url(/img/fence-large.svg), linear-gradient(-45deg, #6200A4, #D70022);
	background-repeat: no-repeat;
	border-radius: 100%;
	width: 28px;
	height: 28px;
	padding: 0;
	border: 1px solid white;
	cursor: pointer;
}

.fbc-badge.fbc-badge-small .fbc-badge-fence {
	background-size: 7px auto, 100%;
	background-image: url(/img/fence-small.svg), linear-gradient(-45deg, #6200A4, #D70022);
	width: 17px;
	height: 17px;
}

.fbc-badge.fbc-badge-fixed {
	position: fixed;
}

.fbc-badge:hover .fbc-badge-tooltip {
	display: block;
}

.fbc-badge-share.fbc-badge-tooltip-active .fbc-badge-tooltip {
	display: block;
}

.fbc-badge.active:hover .fbc-badge-tooltip {
	display: none;
}

.fbc-badge.active .fbc-badge-prompt {
	display: block;
}

.fbc-badge-share-passive:hover {
	display: block;
	visibility: visible;
	opacity: 1;
}

/* Only show first Share badge   */
.fbc-badge-share-passive, .fbc-badge-share-passive.fbc-badge-share:not(.fbc-badge-disabled), .fbc-badge-share.fbc-badge-disabled, .fbc-badge-share:not(.fbc-badge-disabled):not(.fbc-badge-tooltip-active) ~ .fbc-badge-share:not(.fbc-badge-disabled):not(.fbc-badge-tooltip-active) {
	display: none;
	visibility: hidden;
	opacity: 0;
}

.fbc-badge-share:not(.fbc-badge-disabled), .fbc-badge-share.fbc-badge-tooltip-active:not(.fbc-badge-disabled) {
	display: block;
	visibility: visible;
	opacity: 1;
}

.fbc-wrapper{
	position: fixed;
	height: 100%;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	width: 100%;
	z-index: 999999999999;
	background-color: rgba(0, 0, 0, 0.1);
}

.fbc-wrapper iframe {
	color: var(--black);
	box-shadow: 0 5px 12px 0 rgba(0,0,0,0.2);
	border: 1px solid rgba(0,0,0,0.2);
	background: var(--fbc-white);
	border-radius: 8px;
	line-height: 120%;
}

.fbc-iframe-chevron {
	width: 0; 
	height: 0; 
	border-top: 10px solid transparent;
	border-bottom: 10px solid transparent; 
	border-right:10px solid rgb(255, 255, 255); 
	position: absolute;
	left: 1px;
	z-index: 9999999;
}

.fbc-chevron-arrow-right {
	transform: rotate(180deg);
	left: -1px;
}

.fbc-chevron-arrow-top {
	transform: rotate(90deg);
	top: -4px;
}

.fbc-badge-prompt-align-right iframe {
	left: auto;
	right: calc( 100% + 20px);
}

.fbc-badge-prompt-align-right iframe {
	left: auto;
	right: -10px;
	border-width: 10px 0 10px 10px;
}

.fbc-badge-prompt-align-top iframe {
	top: -7px;
	transform: none;
}

.fbc-badge-prompt-align-top iframe:after {
	top: 16px;
}

.fbc-badge-prompt-align-bottom iframe {
	top: auto;
	bottom: -20px;
	transform: none;
}

.fbc-badge-prompt-align-bottom iframe:after {
	display: none;
}

.fbc-badge-prompt h1, .fbc-title {
	all: unset;
	letter-spacing: -0.1px;
	font-family: "SF Pro Text", 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif !important;
	font-size: 13px;
	font-weight: 700;
	display: flex;
	width: 100%;
	margin: 0;
	line-height: 0;
	padding: 15px 0 20px 0;
	border-bottom: 1px solid var(--fbc-light-gray);
	justify-content: center;
	align-items: center;
	text-align: center;
	color: var(--fbc-primary-text);
}

.fbc-badge-prompt p {
	line-height: 140%;
}

.fbc-subtitle-login, .fbc-subtitle-email {
	color: var(--fbc-primary-text);
	font-weight: 500;
}

.fbc-badge-prompt-contents {
	padding: 4px 8px;
	background: var(--fbc-white);
}

.fbc-badge-prompt form {
	all: unset;
	display: flex;
	justify-content: flex-start;
	align-items: center;
}

.fbc-badge-prompt-dontShowAgain-checkbox {
	gap: 8px;
	margin-bottom: 16px;
}

.fbc-badge-prompt input[type=checkbox] {
	-webkit-appearance: none;
	-moz-appearance: none;
	-o-appearance: none;
	appearance: none;
	margin: 0;
	background-color: var(--fbc-light-gray);
	border: 1px solid #8F8F9D;
	border-radius: 2px;
	height: 13px;
	width: 13px;
	line-height: 14px;
	cursor: pointer;
}

.fbc-badge-prompt input[type=checkbox]:checked {
	appearance: checkbox;
}

.fbc-badge-prompt label {
	color: var(--fbc-secondary-text);
	margin: 0;
	cursor: pointer;
}

.fbc-badge-prompt-dontShowAgain-checkbox {
	display: flex;
	align-items: center;
	gap: 8px;
}

.fbc-badge-prompt-buttons {
	width: 100%;
	z-index: 0;
	display: flex;
	gap: 8px;
	justify-content: end;
}

.fbc-badge-prompt-buttons button {
	font-family: "SF Pro Text", 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif !important;
	display: inline-block;
	width: auto;
	padding: 8px 16px;
	border-radius: 4px;
	appearance: none;
	border: 0;
	font-size: 13px;
	font-weight: 500;
	color: var(--fbc-primary-text);
	background: var(--fbc-light-gray);
	transition: var(--fbc-transition);
	cursor: pointer;
	text-align: center;
}

.fbc-badge-prompt-buttons button:focus {
	border-top: 1px solid #cfcfd8;
}

.fbc-badge-prompt-buttons button:hover {
	background: #E9E9E9;
}

/* Tooltip */
.fbc-badge-tooltip {
	display: none;
	padding: 5px 10px 10px;
	width: 250px;
	max-width: 250px;
	background: var(--fbc-white);
	z-index: 9999;
	position: absolute;
	left: calc( 100% + 0.5em);
	top: 50%;
	color: black;
	font-size: 13px;
	line-height: 17px;
	border: 1px solid #BEBEBF;
	box-shadow: 0 2px 4px 0 rgba(0,0,0,0.1);
	font-family: "SF Pro Text", 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif !important;
}

.fbc-badge-prompt-align-right .fbc-badge-tooltip {
	left: auto;
	right: calc( 100% + 0.5em );
}

.fbc-badge-prompt-align-bottom .fbc-badge-tooltip {
	top: auto;
	bottom: 25%;
}

#fbc-email.is-hidden, #fbc-login.is-hidden {
    display: none;
}