*{
   padding: 0;
   margin: 0;
   box-sizing: border-box;
   font-family: 'Poppins', sans-serif;
}


body{
  min-height: 100vh;
  background-size: auto;
  background-position: center;
  background-color:rgba(200, 200, 200, 1.0); 
  #background: url(2048bg-o.png) repeat; 

}


h1 {
 padding-top:10px;
 padding-bottom:10px;
}
h2 {
 padding-top: 10px;
 padding-bottom: 10px;
}

li {
        list-style-type: square;
}

ul > li {
    margin-left: 30px;
}

ol > li {
  margin-left: 30px;
}

p {
   margin: 5px;
}


#contents{
 padding-left: 5%;
 padding-right: 5%;
 padding-bottom: 5%;
 padding-top: 25px;
 width:95%;
}

.header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 50px 150px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}