@charset "utf-8";
/* CSS Document */
#menu{
    justify-content: flex-start;
}
main{
    display: flex;
    justify-content: center;
    margin: 0 auto;
}


/* トップメイン */
#topMain{
    position: relative;
    display: flex;
    justify-content: center;
}

.poster{
    margin: 0 auto;
    padding: 30px;
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
}

.poster img{
    width: 400px;
    margin-bottom: 20px; 
}

/* 演題登録 */


/* 更新履歴 */

#information{
    display: grid;
    grid-template-columns: 1fr 15fr 1fr;
    grid-template-rows: 75px 330px 150px;
    position: relative;
}
h3{
    margin: 0;
    padding: 0;
    font-size: 1.3rem;
    background-color: transparent;
    position: relative;
    border-radius: none;
}
h3::before{
    display: none;
}
dl{
    font-size: 15px;
    font-weight: 400;
    margin: 0 auto 2rem;
    padding: 0;
}
dt{
    font-weight: 500;
    margin-bottom: 8px;
}
dd{
    margin: 0;
}

#information hr{
    margin: 10px auto;
    border: none;
    border-top: 1px solid #a2b7bc;
}

@media screen and (max-width:1160px){
}
@media screen and (max-width:1060px){

}
@media screen and (max-width:780px){
    main{
        width: 100vw;
        margin: 0;
        padding: 0;
    }
    #topMain{
        flex-flow: column;
        justify-content: center;
        align-items: center;
    }
    .poster{
        padding: 20px 0 30px;
        max-width: 80vw;
    }
   .poster img{
        width: 80vw;
   }
   footer{
    margin-top: 50px;
   }
}

@media screen and (max-width:430px){

}