body {  }
.left-aligned { margin-left: auto; }
/*.bg-dark { background-color: #343a40 !important; }*/
.bg-hero { background-color: #7952b3; }

/* CALLOUT */
.bd-callout { padding:1.25rem; margin-top:1.25rem; margin-bottom:1.25rem; border:1px solid #e9ecef; border-left-width:.25rem; border-radius:.25rem }
.bd-callout h4 { margin-bottom:.25rem }
.bd-callout p:last-child { margin-bottom:0 }
.bd-callout code { border-radius:.25rem }
.bd-callout+.bd-callout { margin-top:-.25rem }
.bd-callout-info { border-left-color:#5bc0de }
.bd-callout-warning { border-left-color:#f0ad4e }
.bd-callout-danger { border-left-color:#d9534f }

/* font */
@font-face{
    font-family: 'font-helvetica';
    src: url('https://static.igem.wiki/teams/4286/wiki/helvetica.ttf');
}
/* mathjax*/
.MathJax nobr>span.math>span{border-left-width:0 !important}
.MathJax_CHTML {
    font-family: font-helvetica;
    font-size: 1vw !important;
}

/*basic set*/
a{
    color: black;
    text-decoration:none;/*去掉a标签下划线*/
}

/*未被访问的链接*/
a:link{
    text-decoration:none;
}

/*访问过的*/
a:visited{
    text-decoration:none;
}

/*鼠标划过（停留）*/
a:hover{
    text-decoration:none;
}

/*正在点击*/
a:active{
    text-decoration:none;
}
/*content box*/
.content-box{
    /*  height: 400px;   */
    display: block;
    transition: 0.7s;
    transform: translateY(25%);
    opacity: 0;
}
.content-box-show{
    opacity: 1;
    transform: translateY(0);
}

/* banner */
.page-banner{
    height: 100vh;
    width: 100vw;
    position: relative;
    background-attachment: fixed;
    background-size: auto 100vh;
    background-position: 50% 10vh;
}
.banner-title{
    position: absolute;
    text-align: center;
    color: black;
    width: 100vw;
    height: 10vw;
    background-color: rgba(255,255,255,0.5);
    font-family: font-helvetica;
    font-weight: bold;
    font-size: 8vw;
    line-height: 10vw;
    top: 50vh;
}

.main-container{
    width: 100vw;
    background-color: rgb(223,215,254);
    padding-bottom: 5vh;
}

/* side contents menu*/
.side-menu{
    top: 5px;
    position: sticky;
    font-size: 1vw;
    margin-bottom: 9px;
    font-weight: bolder;
}
.scroll-bar{
    display: inline;
    float: left;
    background-color: rgba(255,255,255,0.5);
    border-radius: 15px;
    position: absolute;
    left: 2vw;
    top:10vh;
    width:16vw;
    z-index: 2;
}
.scroll-nav{
    width: 10px;
    background-color: rgb(103,85,201);
}
.menu-content{
    transition: 0ms;
    opacity: 0;
    position: relative;
    display: inline;
    float:right;
    right:0 ;
    top: 0;
    width: 10px;
    height: inherit;
}
.content-name{
    width:16vw;
    height: inherit;
}
.content-name-item{
    font-family: font-helvetica;
    font-size:1vw;
    padding-left:1vw;
    padding-right:1vw;
    width:100%;
    height: auto;
    min-height: 1.0em;
    text-align: left;
    margin-top: 2vh;
    margin-bottom: 2vh;
}
.content-name-item-active{
    font-family: font-helvetica;
    font-size:1.3vw;
    padding-left:1vw;
    padding-right:1vw;
    width:100%;
    height: auto;
    min-height: 1.0em;
    text-align: left;
    margin-top: 2vh;
    margin-bottom: 2vh;
}
.content-name-item-active a{
    color: orange;
}
.content-name-item-active:hover a{
    color: orange;
}
.content-name-item:hover{
    background-color: rgba(255,255,255,0.8);
}
/* main content*/
.main-content{
    position: relative;
    top: 50px;
    width: 60vw;
    left:20vw;
    background-color: white;
}
/* part box*/
.part-box{
    margin:0 auto;
    width: auto;
    height: auto;
    padding-top: 2.5vh;
    padding-bottom: 2.5vh;
    text-align: left;
}
.main-content h1{
    font-family: font-helvetica;
    font-weight: bold;
    font-size: 2.0em;
    color: black;
    text-align: left;
    padding-top: 1.5vh;
    padding-bottom: 1.5vh;
    padding-left: 3vw;
    padding-right: 3vw;
}
.main-content h2{
    font-family: font-helvetica;
    font-weight: bold;
    font-size: 1.5em;
    color: black;
    padding-top: 1.2vh;
    padding-bottom: 1.2vh;
    padding-left: 3vw;
    padding-right: 3vw;
}
.main-content h3{
    font-family: font-helvetica;
    font-weight: bold;
    font-size: 1.3em;
    color: black;
    padding-top: 1.0vh;
    padding-bottom: 1.0vh;
    padding-left: 3vw;
    padding-right: 3vw;
}
.main-content h4{
    font-family: font-helvetica;
    font-weight: bold;
    font-size: 1.0em;
    color: black;
    padding-top: 1.0vh;
    padding-bottom: 1.0vh;
    padding-left: 3vw;
    padding-right: 3vw;
}
.main-content p{
    font-family: font-helvetica;
    font-size:18px;
    line-height:1.4;
    padding-top: 0.5vh;
    padding-bottom:0.5vh;
    padding-left: 3vw;
    padding-right: 3vw;
    text-align: justify;
    color: black;
}
.main-content p a{
    color: orange;
}
.main-content p a:hover{
    color: navajowhite;
}
.main-content img{
    margin-top: 25px;
    margin-bottom: 25px;
    margin-left: 7.5%;
    margin-right: 7.5%;
    width: 85%;
}
.main-content video{
    padding-top: 25px;
    padding-bottom: 25px;
    padding-right: 3vw;
    padding-left: 3vw;
    width: 100%;
    height: 100%;
}
.main-content .fig-name{
    margin-top: 0.5vh;
    margin-bottom: 0.5vh;
    margin-left: 5vw;
    margin-right: 5vw;
    width: 50vw;
    text-align: center;
    font-size: 13px;
}
.main-content ul{
    font-family: font-helvetica;
    text-align: left;
    padding-top: 0.3vh;
    padding-bottom: 0.3vh;
    padding-left: 5vw;
    padding-right: 3vw;
}
.main-content li{
    font-family: font-helvetica;
    font-size:18px;
    line-height:1.4;
    padding-top: 0.3vh;
    padding-bottom: 0.3vh;
    padding-left: 20px;
    padding-right: 20px;
    text-align: left;
    color: #000;
}
.main-content li a{
    color: orange;
}
.main-content li a:hover{
    color: navajowhite;
}
.main-content table a{
    color: orange;
}
.main-content table a:hover{
    color: navajowhite;
}
.back-top{
    top: 10vh;
    position: sticky;
    margin-right: 7vw;
    width: 150px;
    height: 174px;
}
.back-top-img{
    direction: ltr;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0;
    background: url("https://static.igem.wiki/teams/4286/wiki/szu-back-top.png") no-repeat -600px 0;
    vertical-align: baseline;
    width: 150px;
    height: 174px;
    position: fixed;
    bottom: 25vh;
    right: 5vw;
    display: inline;
    z-index: 99;
}
.formula{
    width: 100%;
    text-align: center !important;
    margin-top: 2vh;
    margin-bottom: 2vh;
    font-size: 2vw;
}
.back-top-img:hover {
    animation: back 0.85s steps(5) infinite;
}
@keyframes back {
    from {
        background-position: 0 0;
    }
    to {
        background-position: -750px 0;
    }
}