html {
    background-image:url(./NewBitmapImage.bmp);
}

#heading {
    width:1278px;;
    height:100px;
    top:0%;
    left:50%;
    margin-left:-638px;
    margin-bottom: 20px;
    background-color:#b5d9f3;
    position:fixed;
    z-index: 1; 
    font-size: 42;
    color: #474747;
    padding-top: 20px;
    text-align: center;
}
#header {
    width:1278px;;
    height:49px;
    margin-top:100px;
    background-color:#626262;
    left:50%;
    margin-left:-638px;
    position:fixed;
    z-index: 1;
    border-top:10px solid #3eb9d2;
    
}

#white {
    width:900px;
    left:50%;
    height: 1000px;
    background-color:white;
    position: fixed;
    margin-top:150px;
    margin-left:-444px;
    z-index: -2;
}

#background {
    width:1278px;
    left:50%;
    margin-left: -638px;
    height: 100%;
    background-color:#bcbcbc;
    position: fixed;
    z-index: -5;
}

a {
    text-decoration: none
}

#home {
    width:120px;;
    height:35px;
    margin-top:110px;
    margin-left:-444px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:14px;
    color: #414141;
    font-size: 18;
}

#timeline {
    width:120px;;
    height:35px;
    margin-top:110px;
    margin-left:-322px;
    left:50%;
    background-color:#959595;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:14px;
    color: #414141;
    font-size: 18;
}

#cites {
    width:120px;;
    height:35px;
    margin-top:110px;
    margin-left:44px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:14px;
    color: #414141;
    font-size: 18;
}

#Manufact {
    width:120px;;
    height:35px;
    margin-top:110px;
    margin-left:-200px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:14px;
    color: #414141;
    font-size: 18;
}

#tutorial {
    width:120px;;
    height:35px;
    margin-top:110px;
    margin-left:-78px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:14px;
    color: #414141;
    font-size: 18;
}

#tutorial:hover, #timeline:hover, #home:hover, #Manufact:hover, #cites:hover {
    background-color:#959595;
}

img {
    left:50%;
    margin-left: 170px;
    z-index: 0;
    position:absolute;
    border:2px solid gray;
    display: none;
}

h2 {
    left:50%;
    margin-left: -250px;
    z-index: 0;
    position:absolute;
    top:200px;
}

#instruction {
    left:50%;
    margin-left: 120px;
    z-index: 0;
    position:absolute;
    margin-top:170px;
}

li {
    border: 2px solid #9edfef;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    margin-top:5px;
    background-color:#b5d9f3;
}

ul {
    left:50%;
    right:40%;
    margin-left: -450px;
    z-index: 0;
    position:absolute;
    top:240px;
    font-size: 18px;
    font-family:serif;
    list-style-type:none;
    text-align: center;
}

#Invention-credit {
    left:50%;
    margin-left: 200px;
    z-index: 0;
    position:absolute;
    margin-top:465px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#lithograph-credit {
    left:50%;
    margin-left: 240px;
    z-index: 0;
    position:absolute;
    margin-top:470px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#built-credit {
    left:50%;
    margin-left: 220px;
    z-index: 0;
    position:absolute;
    margin-top:530px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#sold-credit {
    left:50%;
    margin-left: 220px;
    z-index: 0;
    position:absolute;
    margin-top: 610px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#organ-credit {
    left:50%;
    margin-left: 200px;
    z-index: 0;
    position:absolute;
    margin-top:665px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#working-credit {
    left:50%;
    margin-left: 215px;
    z-index: 0;
    position:absolute;
    margin-top:745px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#material-credit {
    left:50%;
    margin-left: 235px;
    z-index: 0;
    position:absolute;
    margin-top:820px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#prosthetic-credit {
    left:50%;
    margin-left: 220px;
    z-index: 0;
    position:absolute;
    margin-top:890px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#blood-credit {
    left:50%;
    margin-left: 210px;
    z-index: 0;
    position:absolute;
    margin-top:950px;
    color: #838383;
    font-size: 14px;
    display: none;
}

#gold-credit {
    left:50%;
    margin-left: 250px;
    z-index: 0;
    position:absolute;
    margin-top:1030px;
    color: #838383;
    font-size: 14px;
    display: none;
} 


#Invention-slide, #lithograph-slide, #built-slide, #sold-slide, #organ-slide, #working-slide, #material-slide, #prosthetic-slide, #blood-slide, #gold-slide {
    display: none;
    border:2px solid #9edfef;
    border-top: none;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
    height:70px;
    line-height: 30px; 
    background-color:#9edfef;
}

#dropDown-1 {
    width:150px;;
    height:25px;
    margin-top:159px;
    margin-left:-202px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:10px;
    color: #414141;
    font-size: 18;
    border:2px solid #626262;
    display:none;
}

#dropDown-2 {
    width:150px;;
    height:25px;
    margin-top:196px;
    margin-left:-202px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:10px;
    color: #414141;
    font-size: 18;
    border:2px solid #626262;
    display:none;
}

#dropDown-3 {
    width:150px;;
    height:25px;
    margin-top:233px;
    margin-left:-202px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:10px;
    color: #414141;
    font-size: 18;
    border:2px solid #626262;
    border:2px solid #626262;
    display:none;
}

#dropDown-4 {
    width:150px;;
    height:25px;
    margin-top:270px;
    margin-left:-202px;
    left:50%;
    background-color:#838383;
    position:fixed;
    z-index: 10;
    text-align: center;
    padding-top:10px;
    color: #414141;
    font-size: 18;
    border:2px solid #626262;
    display:none;
}

#dropDown-3:hover, #dropDown-2:hover, #dropDown-1:hover, #dropDown-4:hover {
    background-color:#acacac;
}