html {
	font-family: Helvetica, sans-serif;
	width: 100% text-decoration: none;
}

body {
	font-size: 18px;
	line-height: 1.5;
	margin: 0;
	padding: 0;
}

footer {
	text-align: center;
	width: 100%;
	position: relative;
	display: flex;
    justify-content: center;
}

h1 {
	margin: 0 0 20px;
	background-color: #333;
	color: #fff;
	padding: 20px;
	text-align: center;
	text-transform: uppercase;
	font-size: 48px;
}

h2 {
	margin: 20 20 20px;
	font-size: 36px;
	margin-bottom: 10px;
	text-align: center;
}

h3 {
	margin: 0 0 20px;
	font-size: 24px;
	margin-bottom: 10px;
	text-align: center;
}

form {
	margin: 20px 0;
	text-align: center;
}

label {
	display: block;
	margin-bottom: 10px;
	font-weight: bold;
}

button {
	margin-bottom: 10px;
	left: 50%;
}

input[type="text"] {
	border: 2px solid #ccc;
	border-radius: 5px;
	font-size: 18px;
	margin-bottom: 20px;
	padding: 10px;
	width: 300px;
}

input[type="submit"],
button {
	background-color: #333;
	border: none;
	border-radius: 5px;
	color: #fff;
	cursor: pointer;
	font-size: 18px;
	padding: 10px 20px;
	text-transform: uppercase;
}

input[type="submit"]:hover,
button:hover {
	background-color: #555;
}

.message {
	text-align: center;
	margin: auto;
}

#message_block {
	margin: auto;
	width: 80%;
	position: relative;
}

#learn_more_text {
	text-align: center;
}

.buttons_bottom {
	text-align: center;
	width: 100%;
	position: relative;
	bottom: 0;
}

.footer_a {
	margin: 32px;
}

.type,
.gender {
	width: 100%;
	text-align: center;
}


.link {
	color: black;
	text-decoration: none;
}

.link_title {
	color: white;
	text-decoration: none;
}

.black {
	color: black;
}


.tab-container {
	display: flex;
	justify-content: center;
}

.tab {
	padding: 10px;
	background-color: #ccc;
	border: 1px solid #aaa;
	cursor: pointer;
	margin-right: 10px;
}

.tab.active {
	background-color: #fff;
	border-bottom: none;
}

.tab:hover {
	background-color: #ddd;
}

#vocab-content,
#grammar-content {
	margin-top: 20px;
}

.accordion {
    background-color: #eee;
    color: #444;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: center;
    outline: none;
    font-size: 24px;
    transition: 0.4s;
	width: 66%;
}

.active,
.accordion:hover {
    background-color: #ccc;
}

.accordion_container {
	display: flex;
	  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.panel {
    padding: 0 18px;
    background-color: white;
    display: none;
    overflow: hidden;
	width: 60%;
}