.pre1{
    overflow: auto;
height: 500px;
display: block;
padding: 9.5px;
margin: 0 0 10px;
font-size: 13px;
line-height: 1.42857143;
color: #333;
word-break: break-all;
word-wrap: break-word;
background-color: #f5f5f5;
border: 1px solid #ccc;
border-radius: 4px;
}
.code1{
    color: black; 
    font-size: 18px;
    text-align: left;
}
.center{
    text-align: center
}

.not-sticky{
    top: 0;
  padding: 5px;
  background-color: black;
  border: 2px solid red;
    color: red
}
.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  padding: 5px;
  background-color: #cae8ca;
  
}
.background-center{
    
    margin: auto;
    text-align: center;
    
    padding: 50px;
    
}
.right{
    text-align: right; padding: 20px;
}

.left{
    text-align: left; padding: 20px;
}


.container{
    margin-right: 100px;
    margin-left: 100px;
    font-family:  sans-serif;
}
.ula  {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333333;
    
}


.ul1{
    list-style-type: circle;
    

}
li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 16px;
    text-decoration: none;
}

p{
    float: left;
    margin-left: 20px;
}

li a:hover {
    background-color: #111111;
}
        .background {     /*<!-- this is the division defined in the first div in index.html ( <div class="background"> ) so the texts, contents and properties added here  !-->*/
            align-content: center;
            background-image: url(me1.jpg); 
            background-repeat: no-repeat;
            background-position: center;
            background-size: cover;
          text-align:center; 
            font-family:verdana;
            color: lightcyan
        }
   
ol{
    list-style-type:disc;
}

li a: .dropbtn {  /*<!-- Dropdown Menu inside a Navigation Bar li a:dropbtn ?? and if we removed this part is it ok ??  -->*/
            align-content: center;
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}




li a:hover, .dropdown:hover .dropbtn {
    background-color: #111111;
}

li.dropdown {
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 100px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {background-color: #f1f1f1}

.dropdown:hover .dropdown-content {
    display: block;
}
.width1000{
    width:1000px; 
    height:auto; 
}

pre{
    height: 500px;
    display: block;
    margin: 0 0 10px;
    padding: 10px;
    border: 1px solid;
    word-wrap: break-word;
}

left{
    
     margin-left: 50px; font-family:  sans-serif;
}
code{
    color: darkblue; 
    font-size: 18px;
}
center{
    align-content: center;
}