body{
    background-image: url("https://static.igem.wiki/teams/5300/source/team/team-bg.png");
    background-size: contain;
}
.mycontainer{
    display: flex;
    flex-direction: column;

}
.row{
    display: flex;
    flex-direction: row;
    justify-content: center;
}

#head_picture
{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
#tpicture
{
    width: 100%;
    height: 720px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/team/head.png");
    background-position: center;
    background-size: 100%;
}
#sentence_below{
    width: 100%;
    height: 60px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/sentence/3.png");
    background-position: center;
    background-size: 50%;
}

.person_picture{
    width: 325px;
    height: 325px;
    background-repeat: no-repeat;
    background-size: contain;
    transition: background-image 0.7s;
}
.title{
    font-size: 45px;
    text-align: center;
    font-weight: bold;
     text-shadow:
                -1px -1px 0 red,
                1px -1px 0 red,
                -1px 1px 0 red,
                1px 1px 0 red; /* 添加黑色边缘线 */
}

#tstudents{
    width: 100%;
    height: 200px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/44.png");
    background-position: center;
    background-size: 40%;
}

#advisors{
    width: 100%;
    height: 200px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/45.png");
    background-position: center;
    background-size: 40%;
}

#pi{
    width: 100%;
    height: 200px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/46.png");
    background-position: center;
    background-size: 40%;
}

#end_sentence{
    width: 100%;
    height: 250px;
    background-repeat: no-repeat;
    background-image: url("https://static.igem.wiki/teams/5300/source/sentence/2.png");
    background-position: center;
    background-size: 50%;
}