stylesheet.css

* {
    box-sizing: border-box;
}

html,
body,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
p,
div {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Lucida Grande";
}

a {
    text-decoration: none;
}

.clear {
    clear: left;
}

.container {
    max-width: 1170px;
    padding: 0 15px;
    margin: 0 auto;
}

header {
    height: 65px;
    width: 100%;
    background-color: rgba(34, 49, 52, 0.9);
    position: fixed;
    top: 0;
    z-index: 10;
}

.logo {
    width: 50px;
    margin-top: 5px;
    border: 3px solid #eaeaea;
    float: left;
    position: relative;
    animation-name: logonya;
    animation-duration: 4s;
    animation-iteration-count: infinite;
}

@keyframes logonya {
    0%   { right:0px;}
    50%  { right:100px;}
    100% { right:0px;}
  }

.header-left a {
    line-height: 65px;
    padding: 0 25px;
    color: white;
    display: block;
    float: left;
    transition: all 0.5s;
}

.header-left a:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.header-left {
    float: left;
}



.header-right {
    float: right;
    margin-right: -25px;
}

.header-right a {
    line-height: 65px;
    padding: 0 25px;
    color: white;
    display: block;
    float: left;
    transition: all 0.5s;
}

.menu-icon {
    color: white;
    float: right;
    font-size: 25px;
    padding: 21px 0;
    display: none;
  }

hr {
    border-top: 4px solid #666;
}

.header-right a:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.top-wrapper {
    padding: 150px 0 100px 0;
    background-image: url(https://farm5.staticflickr.com/4809/46765507392_36cc29240e_o.jpg);
    background-size: cover;
    color: white;
    text-align: center;
    margin-bottom: 50px;
    height: 700px;
}

.top-wrapper h1 {
    font-size: 45px;
    letter-spacing: 5px;
    margin-bottom: 10px;
}

.top-wrapper h4 {
    margin-bottom: 3px;
    letter-spacing: 1px;
    opacity: 0.9;
}

.top-wrapper h3 {
    margin-bottom: 50px;
    letter-spacing: 5px;
}

.btn-wrapper {
    text-align: center;
    margin: 100px 0;
}

.btn-wrapper p {
    margin: 10px 0;
}

.signup {
    background-color: #239b76;
}

.facebook {
    background-color: #3b5998;
    margin-right: 10px;
}

.twitter {
    background-color: #55acee;
}

.btn {
    padding: 12px 24px;
    color: white;
    display: inline-block;
    opacity: 0.8;
    border-radius: 4px;
    text-align: center;
}

.btn:hover {
    opacity: 1;
}

.fa {
    margin-right: 5px;
}

.lesson-wrapper {
    padding-bottom: 80px;
    padding-left: 5%;
    padding-right: 5%;
    background-color: #f7f7f7;
    text-align: center;
}

.heading {
    padding-top: 80px;
    padding-bottom: 50px;
    color: #0d0d0e;
}

.heading h1 {
    font-size: 45px;
}

.lesson {
    float: left;
    width: 25%;
}

.lesson p {
    font-weight: 900;
}

.lesson-icon {
    position: relative;
}

.lesson-icon p {
    position: absolute;
    top: 80%;
    width: 100%;
    color: white;
}

.lesson-icon:hover {
    opacity: 0.5;
}

.txt-contents {
    width: 80%;
    display: inline-block;
    margin-top: 15px;
    font-size: 20px;
    color: #4d4b4b;
}

.heading h3 {
    font-weight: normal;
}

.img-wrapper {
    padding-bottom: 80px;
    padding-left: 5%;
    padding-right: 5%;
    background-color: #f7f7f7;
    text-align: center;
}

.contents {
    padding-top: 80px;
    padding-bottom: 50px;
    color: #0d0d0e;
}

.contents h1 {
    font-size: 45px;
}

.lesson {
    float: left;
    width: 25%;
}

.lesson-img {
    position: relative;
}

.lesson-img:hover {
    opacity: 0.5;
}

.lesson-img hr {
    width: 250px;
    border-top: 4px solid #666;
}

.contact-form {
  padding: 100px 5%;
}

input,textarea {
  width: 400px;
  margin-top: 10px;
  margin-bottom: 30px;
  padding: 20px;
  font-size: 18px;
  border: 1px solid #dee7ec;
}

.contact-submit {
  background-color:#dee7ec;
  color: #889eab;
}

.footer {
  background-color: #2f5167;
  color: #fff;
  height: 120px;
  padding: 20px;
}

.footer-logo {
  float: left;
  font-size: 32px;
}

.footer-list {
  float: right;
}

.footer-list li {
  padding-bottom: 20px;
}