*{
    margin: 0;
    padding: 0;
}

html{
    font-size: 16px;
}

.outer_container{
    height: 100%;
    padding: 100px 0 0 ;
    box-sizing: border-box;
    background-color: antiquewhite;
}
.header{
    display: flex;
    background-color: darkslategray;
    width: 100%;
    height: auto;
    min-height: 60px;
    text-align: left;
    align-items: center;
    margin: -100px 0 0 ;
    position: fixed;
}
.header_left{
    flex: 2;
    text-align: center;
}
.header_middle{
    flex: 6;
    text-align: left;
    display: flex;
}
.header_right{
    flex: 2;
}
.footer{
    background-color: darkslategray;
    height: 60px;
    line-height: 60px;
    text-align: center;
}
.chengyu_container{
    display: flex;
    height: 100%;
    min-height: 800px;
    margin-top: -40px;
}
.left{
    flex: 2;
    text-align: center;
}
.middle{
    background-color: gainsboro;
    flex: 6;
    text-align: center;
}
.explanation{
    background-color: gainsboro;
    flex: 6;
    text-align: left;
}
.sanzijing_explanation{
    background-color: gainsboro;
    flex: 6;
    text-align: left;
}
.sanzijing_stories{
    background-color: gainsboro;
    flex: 6;
    text-align: left;
}
.p_explanation{
    color: darkslategray;
    font-size: 1.05rem;
}
.middle_title{
    display: flex;
    margin-top: 1.25rem;
}
h3{
    color: darkslategray;
    text-align: left;
    width: auto;
}
.chengyu_div_search{
    flex: 3;
    text-align: right;
}
.right{
    flex: 2;
    text-align: center;
}
#btn_next_batch{
    width: auto;
    height: auto;
    font-size: 1.05rem;
    margin-left: 0.5em;
}
td {
    white-space: nowrap;
    height: 60px;
    display: block;
    text-align: center;
    word-wrap: break-word;
}
tbody tr {
    width: 25%;
    display: inline-block;
    font-size: 1.05rem;
}

a{
    text-decoration: none;
}
a.a_chengyu_list:link,
a.sanzijing_list_a:link{
    color: darkslategray;
}
a.a_chengyu_list:hover,
a.header_title:hover,
a.sanzijing_list_a:hover,
.sanzijing_title_navigation a:hover{
    color: red;
}
#keyword{
    color: red;
}

#search_text{
    width: 12vw;
    height: 3vh;
    font-size: 1.05rem;
}
#btn_search{
    width: auto;
    height: auto;
    font-size: 1.05rem;
}

a.header_title{
    flex: 1;
    color: antiquewhite;
    font-size: 1.05rem;
}
.logo{
    width: 121px;
    height: 60px;
    vertical-align: middle;
}

ul li{
    list-style-type: none;
}
.sanzijing_list_li{
    margin: 0;
    padding: 0;
}
.sanzijing_detail_index{
    display: flex;
    padding: 10px 10px;
    width: 22%;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    float: left;

}
.span_pinyin{
    font-size: 0.825rem;
}
.span_sanzijing_name{
    font-size: 1.25rem;
}
.sanzijing_title_navigation {
    width: 100%;
    height: auto;
    padding-top: 2rem;
}
.sanzijing_title_navigation a{
    margin: 1.25rem;
    color: darkslategray;
}
.sanzijing_author,
.sanzijing_content,
.sanzijing_org,
.sanzijing_story,
.sanzijing_details,
.sanzijing_stories,
.sanzijing_stories_single{
    padding: 2rem 1rem;
    font-size: 1.05rem;
    color: darkslategray;
}

h4{
    margin-bottom: 1.25rem;
}
.p_sanzijing{
    text-indent: 2em;
    letter-spacing:3pt;
    text-align: justify;

}
.sanzijing_story_name{
    text-align: center;
}

.tangshisongci_intro{
    background: white;
    display: flex;
    padding: 1rem;
}
.tangshisongci_intro_img{
    width: 100%;
    height: auto;
    flex: 1;
    text-align: center;
}
.tangshisongci_img{
    width: auto;
    height: auto;

}

.tangshisongci_intro_text{
    flex: 1;
    text-align: center;
}
.tangshisongci_intro_text_p{
    text-indent: 2em;
    letter-spacing:3pt;
    text-align: justify;
    color: darkslategray;
    font-size: 1rem;
}
.tangshisongci_main_section{
    width: 100%;
    clear: both;
    overflow: hidden;

}
.tangshisongci_main_section_list{
    margin: 1rem 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: auto;
}
.tangshisongci_main_section_category{
    background-color: white;
    margin: 1rem 0 1rem 0;
    width: 100%;
    height: auto;

}
.category_box{
    background: white;
    margin: 1rem 0 1rem 0;
    padding: 2rem 1rem 1rem 2rem;
}
.tangshisongci_list_li{
    width: 30%;
    float: left;
    text-align: left;
    font-size: 0.875rem;
    margin: 0.35rem 0;
    color: grey;
    text-overflow: ellipsis;
    list-style-type: disc;
}
.tangshisongci_list_a:link{
    color: #000000;
}
.tangshisongci_list_a:hover{
    color: red;
}

.tangshi300_single_content{
    text-align: center;
    margin: 2rem;
}
.commonimg{
    text-align: center;
}
.tangshi_diangu{
    width: 80%;
    height: auto;
    min-height: 3rem;
    border: 0.125rem dashed;
    border-color: #205067;
    border-radius: 2rem;
    text-align: center;
    display: block;
    margin: 2rem auto;
}
.tangshi_diangu_p{
    text-indent: 2em;
    text-align: justify;
    margin: 0.825rem;
    color: grey;
}
.tangshi300_yiwen,
.tangshi300_shangxi,
.tangshi300_author_intro{
    width: 80%;
    height: auto;
    margin: 2rem auto;
}
.tangshi_shangxi_yinwen_p{
    text-align: justify;
    margin: 0.825rem;
    color: grey;
    font-size: 1rem;

}