html, body{
  height: 100%;
  width: 100%;
}
*{
  box-sizing: border-box;
}
h1, h2, h3, h4{
  font-size: 0.9em;
}
p{
  font-size: 1em;
  font-family: monospace;
  color: #8a141a;
}
body{
  background-color: #e1bcbc;
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  text-align: center;
  vertical-align: super;
  color: #660a0a;
  margin: 0; 
}
#logo {
  z-index: 1;
  width: 60px;
  position: absolute;
  top: 70px;
  right: 250px; 
  border: 3px solid #863232;
}
.banner {
  background-color: #e19898; 
  margin: 40px;
  padding: 5px;
  border: 1px solid #863232;
  box-shadow: 1px 3px 30px 1px #9a6565;
  text-transform: capitalize;
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  height: 190px;
  text-align: right;
  font-weight: bold;
}
.menu{
  margin: 10px;
  padding: 10px;
  height: 150px;
  overflow: hidden;
  position: absolute;
  left: 40px;
  top: 40px;
  font-size: 1.2em;
  text-align: left;
  z-index: 1;
  border: 3px solid #7f4848;
  font-family: 'Courier New', Courier, monospace

}

.menu a{
  background-color: #a5696c;
  color: #d9b5bc;
  padding: 2px;
  font-size: 0.9em;
  display:none;
}

.menu a:hover{
  background-color: #d6999c;
  color: #d68f9d;
}
.menu:hover a{
  background-color: #a5696c;
  color: #d9b5bc;
  display: block;
}
.container{
  border: 2px solid #c45f5f;
  background-image: repeating-linear-gradient( #efd7d8, #ea9a9a, #865656);
  height: 550px;
  overflow: hidden;
}
.wave{
  border: 1px dotted #85474a ;
  background-image: repeating-radial-gradient( rgba(157, 92, 99, 0.2), #d69595, #fde2e2, pink);
  height: 20px;
  width: 80%;
  position: relative;
  left: 10%;
  transition: height 4s;
  display: block;
  overflow: hidden;
}
#u1{
  transition: height 4s;
}
#u1:hover{
  height: 450px;
  z-index: 1;
}
#u2{
  transition: height 4s;
}
#u2:hover{
  height: 450px;
  z-index: 1;
}
#u3{
  transition: height 4s;
}
#u3:hover{
  height: 450px;
  z-index: 1;
}
#u4{
  transition: height 4s;
}
#u4:hover{
  height: 450px;
  z-index: 1;
}
#left{
  position: absolute;
  left: 1px;
  margin: 2px;
  padding: 2px;
  border: 1px solid #9e4747;
  width: 49.5%;
  height: 1000px;
  transition: height 4s;
  display: block;
  overflow: hidden;
}

#right{
  position: absolute;
  right: 1px;
  margin: 2px;
  padding: 2px;
  border: 1px solid #9e4747;
  width: 49.5%;
  height: 1000px;
}
#top{
  position: relative;
  top: 5px;
  left: 1px;
  right: 1px;
  bottom: 5px;
  margin: 2px;
  padding: 2px;
  border: 1px solid #9e4747;
  width: 99%;
}
#prj{
  border: 2px solid #571e1e;
}
#dn{
  border: 3px solid #4d1a46;
}
#Lesson1{
  transition: height 4s;

}
#Lesson1:hover{
  height: 450px;
  z-index: 1;
}

#Lesson2{
  transition: height 4s;

}
#Lesson2:hover{
  height: 450px;
  z-index: 1;
}

#Lesson3{
  transition: height 4s;

}
#Lesson3:hover{
  height: 450px;
  z-index: 1;
}

#Lesson4{
  transition: height 4s;

}
#Lesson4:hover{
  height: 450px;
  z-index: 1;
}

#Lesson5{
  transition: height 4s;

}
#Lesson5:hover{
  height: 450px;
  z-index: 1;
}

#Lesson6{
  transition: height 4s;

}
#Lesson6:hover{
  height: 450px;
  z-index: 1;
}

#Lesson7{
  transition: height 4s;

}
#Lesson7:hover{
  height: 450px;
  z-index: 1;
}

#Lesson8{
  transition: height 4s;

}
#Lesson8:hover{
  height: 450px;
  z-index: 1;
}

#Lesson9{
  transition: height 4s;

}
#Lesson9:hover{
  height: 450px;
  z-index: 1;
}

#Lesson10{
  transition: height 4s;

}
#Lesson10:hover{
  height: 450px;
  z-index: 1;
}

#Lesson11{
  transition: height 4s;

}
#Lesson11:hover{
  height: 450px;
  z-index: 1;
}

#Lesson12{
  transition: height 4s;

}
#Lesson12:hover{
  height: 450px;
  z-index: 1;
}