body {
    width: 850px;
    font-family: 'Kosugi Maru', sans-serif;
    font-size : 16pt;
    background-color: #fff0f8;
    margin: 10px;
    display: flex;
    flex-flow: column;
    min-height: 165vh;
    z-index: 1;
}
header {
    background-color:#fff0f8;
    top: -10px;
    left: 5px;
    position: fixed;
    box-shadow: 0px 5px 5px rgba(0,0,0,0.3);
    z-index: 99;
}
header h1 {
    width : 680px;
    height: 35px;
    margin-top: 20px;
    margin-left: 5px;
    margin-bottom: -30px;
    padding-left: 15px;
    font-size: 26pt;
    color: #800040;
    border-left: 15px solid #dda0dd;
    text-shadow: 2px 2px lightgray, -2px -2px white, -2px 2px lightgray, 2px -2px lightgray;
    z-index: 2;
}
header hr {
    position: absolute;
    top: 55px;
    left: 0px;
    width: 850px;
    height: 5px;
    background-color: #800040;
    border: none;
    box-shadow: 0px -3px 3px rgba(128, 0, 64,0.3);
    z-index: 100;
}
main {
    position: relative;
    flex: 1;
    z-index: 1;
}
mark {
    background: linear-gradient(transparent 40%, lime 80%);
}