html {
    height: 100%;
    scroll-behavior: smooth;
}
body {
    margin-right: auto;
    margin-left: auto;
    background-color: #F4f5F7;
    height: 100%;
    display:flex;
    flex-flow: column;
    min-height: 100vh;
}
/* ヘッダー*/
header{
    height: 300x;
    width:100%;
    background-color: #404040;
}
/* メイン */
main{
    padding-top: 30px;
    flex:1;
}
/* 元素表 */
.periodic_a {
    width: 50px;
    height: 55  px;
    text-align: center;
    /* text-shadow: -1px  2px 2px black */
    border-width: 0ch;
}
.selected_ele {
    background-color: lightslategray !important;
}
.link:active {
    opacity: 1;
}
.peri_f5 {
    font-family: 'Secular One', sans-serif;
    font-size: 20px;
    opacity: 0.6;
}
.number {
    font-size: 0.8rem;
}
.ph3 {  /*tachyonsの上書き*/
    padding-left: 0.3rem;
    padding-right: 0.3rem;
} 
.bg-peru {
    background-color: #CD853F;
}
.bg-burlywood {
    background-color: #DEB887;
}
.bg-rosybrown {
    background-color: #BC8F8F;
}
.bg-jungle-green {
    background-color: #26C281;
}
.ui.bg-light-green.button {
    background: #7df1c1 none;
}
/* 元素表、検索バー、検索結果　共通 */
#results-sec, #search-sec, #periodic_table {
    width:1000px;
    margin:auto;
}
/* 検索結果一覧 */
table.results{
width: 100%;
border-spacing: 0;
}

table th.results{
border-bottom: solid 2px #ffc000;
padding: 10px 0;
}

table td.results{
border-bottom: solid 2px #ddd;
text-align: center;
padding: 10px 0;
overflow-wrap: break-word; 
}

table td.comment{
    width:200px;
}
table td.tb-title{
    width:300px;
}
/** ページングの設定*/
.paging-nav {
text-align: center;
padding-top: 4px;
}

.paging-nav a {
margin: auto 1px;
text-decoration: none;
display: inline-block;
padding: 4px 10px;
/* background: #91b9e6; */
/* background: #00b5ad; */
background: #00b5ad;
color: white;
border-radius: 3px;
}

.paging-nav .selected-page {
/* background: #187ed5; */
background: #00837c;
font-weight: bold;
}
/** トップへ戻るボタン*/
.page_top_btn {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-weight: bold;
    padding: 0.7em;
    text-align: center;
    color: #fff;
    transition: 0.3s0;
}

/* マウスオーバー時 */
.page_top_btn:hover {
    color: rgb(255, 255, 255, 0.8); 
}

/* 検索BOX */
.search-textbox{
    width: 400px;
    height:40px;
    margin-top: 0px;
    padding: 5px;
    border: 1px solid;
    border-radius: 5px;
    color: #a0a0a0;
    outline: none;
    display:table-cell;
    vertical-align:middle;
    background-color: #fff;
}
#no-select{
    color: rgba(0,0,0,.4);
}
.mini-search-tag {
    width: 20px;
    padding: 2px;
    border: 1px solid;
    border-radius: 5px;
    font-size: xx-small;
    color: darkgrey;
    background-color: #d6d3d3;
    outline: none;
}
#keyword {
    width:300px;
}
.results_page{
    height: 100px;
}

/* ヘッダー部分 */
.title {
    background-color: #404040;
    color: #fff;
    text-align: center;
    display:flex;
    justify-content:space-between;
}
.results_title {
    height:60px; 
}

.title h1 {
    text-align: left;
    font-style: italic;
}
h2.service-name {
    text-align: center;
    font-size: 70pt;
    color:#fff;
}
/* ロゴ */
div.logo, div.sub-title {
    float:left;
    padding: 1em;
    vertical-align: middle;
}
div.sub-title {
    text-align: center;
}
div.logo h1 a:link {
    color:#fff;
}
div.logo h1 a:visited {
    color:#fff;
}
div.logo h1 a:hover {
    color:#fff;
}
div.logo h1 a:active {
    color:#fff;
}
/* ナヴィゲーションメニュー */
nav.pc-nav {
    float: none;
}
ul.pc-nav-menu {
    background: #ffc000;
    padding: 0;
    text-align: center;
    margin: 0;
}
ul.pc-nav-menu li{
    display: inline-block;
    margin-left: 40px;    
}
ul.pc-nav-menu li a{
    display: block;
    padding: 1em;
    color: #404040;
    text-decoration: none;
}
ul.pc-nav-menu a::first-line{
    font-size: 16px;
    font-weight: bold;
}
/* 説明文 */
.overview {
    color: #ffffff;
    width: 900px;
    margin:0 auto 30px auto;
    font-size: 14px;
}

.overview a {
    color: #ffc000;
}

/* フッター */
footer {
    height: 40px;
    width: 100%;
    padding-top: 10px;
    background-color: #404040;
    color: #fff;
    text-align: center;
    margin-top:20px;
    position: sticky;
}
/* 一覧表示件数 */
.show-entry-container {
    font-size: 20px;
    padding:3% 0;
}
.ui.selection.dropdown.user-set {
    min-width: 0em;
    width:80px;
    height: 30px;
}

/* AND|ORボタン */
.ui.button.active.teal {
    background-color: cornflowerblue;
}