a {color: #f3f3f3; text-decoration: none;}
a:link {color: blue; text-decoration: none;}
a:visited {color: blue; text-decoration: none;}
a:hover {color: blue; text-decoration: none;}
a:active {color: blue; text-decoration: none;}
span:hover {color: #ff6376; text-decoration: none;}

div {
    box-sizing: border-box;
}

input {
    outline:none;
    border: 1px solid #000;
    border-radius: 8px;
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
}

table {
    margin-top: 30px;
    border-collapse: collapse;
    border: none;
}

td {
    width: 120px;
    height: 25px;
    border: #bfbfbf solid 1px;
    padding: 2px 4px;
}

html {
    width: 100%;
    height: 100%;
}

body {
    font-family: Ebrima;
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    color: #f3f3f3;
    /* background-image: url('/static/img/fudan.jpg'); */
    background-image: url('https://bing.zhanglintc.co/?daysAgo=0');
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

#main {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#header {
    width: 100%;
    height: 45%;
}

#mask {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #5a5a5a;
    opacity: 0.5;
    z-index: -1;
}

#center {
    width: 45%;
    height: 100%;
    z-index: 9;
}

#title {
    font-size: 30px;
    text-align: center;
}

#search_area {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#search_bar {
    margin-top: 20px;
    outline:none;
    border: 1px solid #bfbfbf;
    width: 100%;
    height: 32px;
    font-size: 18px;
    padding-left: 5px;
    border-radius: 1px;
    -webkit-border-radius: 1px;
    -moz-border-radius: 1px;
}

#table_wrapper {
    position: relative;
}

#navi_table {
    color: white;
    width: 100%;
    height: 30%;
    z-index: 1;
}

.edit_area {
    outline:none;
    border: 1px solid #000;
    width: 350px;
    height: 24px;
    font-size: 14px;
    padding-left: 5px;
    border-radius: 0px;
    -webkit-border-radius: 0px;
    -moz-border-radius: 0px;
}

.cells {
    cursor: pointer;
}

#background_discreption {
    padding-top: 15px;
    text-align: center;
}

#footer {
    width: 100%;
    height: 10%;
    display: flex;
    padding-bottom: 10px;
    align-items: flex-end;
    justify-content: center;
}

#copyright {
    text-align: center;
}