*{
    margin: 0px;
    padding: 0px;
  }
  body{
    box-sizing: border-box;
    background-color: rgb(16, 11, 57);
   
  }
 
  .heading-one{
      display: flex;
      justify-content: space-between;
      align-items: center;
    background-color: skyblue;
    background-attachment: fixed;
    text-align: center;
    padding: 15px;
    color: white;
    position: fixed;
    width:96.2%;
  }
  .heading-one h1{
    
    background-color: red;
    padding: 7px;
    max-width: fit-content;
    text-transform: uppercase;
  }
  .heading-one h4{
      font-size: 20px;
    color: rgb(32, 35, 90);
    padding: 10px;
    font-weight: bold;
    text-transform: uppercase;
    max-width: fit-content;
    margin-right: 5%;
  }
  .nav-link{
    background-color: rgb(16, 11, 57);
    padding: 20px;
   
  }
 .nav-link li{
   font-family: "Segoe UI",Arial,sans-serif;
    margin-top: 30px;
    display: block;
    margin-left: 10px;
    list-style-type: none;
    padding: 2px;
    border-radius: 6px;
  }
  a{
    text-decoration: none;
    color: rgb(200, 200, 209);
    font-size: 17px;
  }
  a:active {
    background-color: red;
  }

  .p-4{
    
    border: 4px solid black;
    color:  rgb(191, 188, 188);
    font-family: Georgia, 'Times New Roman', Times, serif;  
    padding: 20px 10px 0 10px;
    background-color: black;
  }
  .definition{
    margin-top: 15px;
  }
  .definition li {
    list-style-type: disc;
    margin-left: 50px;
    line-height: 25px;
  }
  
  .logo{
      height: 50px;
      width: 100px;
  }
  
  marquee{
    color: white;
  }
  .p-4 h1{
    margin-top: 30px;
    margin-bottom: 20px;
  }
  .p-4 img{
    margin-top: 15px;
  }
  html, body, .col1, .col2 {
    height: 100%;
  }
  .col1 {
    
    width: 15%;
    margin-top: 7%;
    position: fixed;
    left: 0;
    top: 0;
  }
  
  .col2 {
  
    margin-left: 15%;
    overflow: auto;
  }
  .cap-1{
    padding-top: 8%;
  }
  .footer{
    position: relative;
    background-color: rgb(16, 11, 57);
    z-index: -3;
  }
  .subtitle{
    padding:10px;
  }
  .text{
    margin-top: 30px;
    margin-bottom: 30px;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 23px;
  }
  ol{
    margin-left: 20px;
  }
  ol li{
    line-height: 100px;
  }
  .edit_icon{
    height: 100px;
    width: 110px;
    
  }
  .steps{
    margin-top: 30px;
    font-size: 30px;
    font-family: Verdana, Geneva, Tahoma, sans-serif
  }
.b4-pre{
  padding: 13px;
}
.red{
  color: red;
}
.pink{
  color: pink;
}
.blue{
  color: blue;
}
.skyblue{
  color: skyblue;
}
.green{
  color: green;
}
.green2{
  color: greenyellow;
}
.code{
  background-color: rgb(40, 40, 41);
  border-left: 4px solid blue;
}
.code pre{
  font-size: 18px;
}
.trans{
  text-transform: lowercase;
}
.page-nav{
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  width: 80%;
}
.next{
  color: black;
  cursor: pointer;
  padding: 10px;
  font-size: 15px;
}
.bt-next{
  border:none;
  width: 100px;
  height: 40px;
  background-color: greenyellow;
}
.img-1000{
  width: 1000px;
  margin: 20px 0 20px 0;
}
.silver{
  width: 800px;
  padding: 25px;
  border: 1px solid gray;
  background-color: rgb(28, 28, 28);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 25px;
}
.run{
 background-color:green;
 font-size: 23px;
}
.top-button{
  padding-top: 10%;
  display: flex;
  justify-content: space-between;
  position: fixed;
  z-index: 1;
}