html, body {
    margin: 0;
    padding: 0;
    font-family: "PT Serif", "Times New Roman", serif;
    background-color: white;
    color: #6B6B6B;
    line-height: 1.45;
    font-size: 14px;
}
.movie {
    display: inline-block;
    padding-left: 100px;
    background: transparent url(play.png) no-repeat 25px top;
    margin-left: -100px;
    min-height: 50px;
    position: relative;
}
.movie:hover:after {
    color: #bbb;
}
.movie:after {
    content: "Hover or tap";
    position: absolute;
    left: 22px;
    top: 53px;
    font-size: 10px;
    font-family: Helvetica, Arial, sans-serif;
    color: #ccc;
}
.movie.playing {
    background-image: url(play-depressed.png);
}
.movie.playing img {
    cursor: none;
     transition : border 300ms ease-out; 
    -webkit-transition : border 300ms ease-out; 
    -moz-transition : border 300ms ease-out;
    -o-transition : border 300ms ease-out;
}
.movie.playing:hover img {
    border-color: #d4d4d4;
}
::selection {
    color: black;
    background-color: rgb(202, 230, 255);
}
h2 {
    border-bottom: 1px solid black;
    border-left: 1.4em solid black;
    padding-left: 12px;
    margin: 2em 0 0 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 20px;
}
h1 {
    font-size: 69px;
    font-family: Georgia, "Times New Roman", serif;
    margin: 0;
}
.header {
    line-height: 1.15;
    padding: 40px 0 40px 100px;
    background-image: url(old_mathematics.png);
    box-shadow: 0 0 10px #ADADAD inset;
    margin-bottom: 35px;
    background-position: 94px 147px;
    text-shadow: 1px 1px #fff;
}
.header h2 {
    color: #333;
    border: 0;
    margin: 0;
    padding: 0;
    font-weight: normal;
    font-size: 20px;
    display: inline-block;
}
.header h3 {
    display: inline-block;
    color: rgb(149, 158, 160);
    text-shadow: 1px 1px white;
    font-size: 12px;
    font-weight: normal;
    font-family: Georgia, "Times New Roman", serif;
    margin: 0 0 0 101px;
}
.header h3 a {
    color: inherit;
    text-decoration: none;
}
.header h3 a:hover {
    text-decoration: underline;
    color: #333;
}
h1, h2, strong, b {
    color: black;
}
.container {
    width: 650px;
    margin-left: 100px;
}
img {
    border: 1px solid #eee;
}
.sidenote {
    position: absolute;
    left: 790px;
    width: 230px;
    color: #aaa;
    line-height: 1.5;
    font-size: 11px;
    font-family: Verdana, Arial, sans-serif;
    margin-top: 23px;
}
.sidenote a {
    color: inherit;
}
.sidenote a:visited {
    color: #bbb;
}
.sidenote a:hover {
    color: #999;
}
p {
    margin: 20px 0;
}
#end {
    margin-top: 45px;
    box-shadow: 0 5px 5px #CFCFCF inset;
    background-image: url(old_mathematics.png);
    padding: 10px 0 10px 100px;
    text-shadow: 1px 1px #fff;
    font-size: 12px;
    color: rgb(149, 158, 160);
    background-position: 94px 68px;
}
#end p {
    margin: 15px 0;
    width: 650px;
}
#end a {
    color: inherit;
}