stylesheet.css

/* Write your code at the bottom */

* {
  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;
}


#particles-js {

  margin-top: 8px;

  position: relative;

  padding-top: 180px;

  padding-bottom:5%;

  height: 100vh;

  background-image: url(humau.jpg);
 background-repeat:no-repeat;

	background-size: 100% 100%;
   

  color: white;

  text-align: center;

}


.top-wrapper {

position: absolute;

top: 20%;

bottom: 50%;

left: 5%;

right: 5%;

text-align:center;

}

.top-wrapper h1 {
  
  opacity: 1;
  font-size: 45px;
  letter-spacing: 5px;
  margin-bottom: 10px;
  margin-top: 5px;

}
.top-wrapper h2{
  margin-bottom: 20px;
}

.top-wrapper p {
  opacity: 0.7;
  margin-bottom: 3px;
}

.btn-wrapper {
  text-align: center;
  margin: 80px 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;
}


  


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

.logo {

  width: 44px;
  margin-top: 5px;
  border-radius: 50%;
  border: 1px solid red;

}
.header-left p {
  color: silver;
  text-align: center;
  font-size: 10px;
}

.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 .5s;
}

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

.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: #5f5d60;
}

.heading h2 {
  font-weight: normal;
}

.lesson {
  float: left;
  width: 14.28%;
}

.lesson-icon {
  position: relative;
}

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

.text-contents {
  width: 80%;
  display: inline-block;
  margin-top: 30px;
  font-size: 15px;
  color: #b3aeb5;
}

.heading h3 {
  font-weight: normal;
}

.message-wrapper {
  border-bottom: 2px solid #eee;
  padding-bottom: 80px;
  text-align: center;
}

.message {
  padding: 10px 40px;
  background-color: #5dca88;
  cursor: pointer;
  box-shadow: 0 7px #1a7940;
}

.message:active {
  position: relative;
  top: 7px;
  box-shadow: none;
}

footer img {
  width: 120px;
}

footer p {
  color: #b3aeb5;
  font-size: 10px;
}

footer {

  padding-top: 5px;
  padding-bottom: 10px;
  float: left;
}

/* Write your code below */
.menu-icon{
  float: right;
  margin-top: 21px;
  font-size: 25px;
  color: white;
  
}
.lesson-icon img{
  width: 100px;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0.85;
}

.lesson-icon img:hover{
  opacity: 1;
}



.block {

  display: block;

  width: 100%;

  border: none;

  background-color: #4CAF50;

  color: white;

  padding: 8px 28px;

  font-size: 16px;

  cursor: pointer;

  text-align: center;
  border-radius: 10px;
  opacity: 0.8;
  margin-bottom: 50px;

}

.block:hover {

  background-color: #ddd;

  color: black;

}
.form-gap {
    padding-top: 100px ;}
	

.about{

   width:100%;

   color: forestgreen;

   font-size: x-large;

   margin-top: 2%;

}

.about:hover{

  background-color: forestgreen;

  cursor: pointer;

  color: white;

}