/*** for PC Browser ***/
@media (min-width:401px)
{
.img_flex {
    display: flex;
    width: 100%;
}

.img_flex img {
    margin: 0px;
    padding: 0px;
    width: 25%;
}

.ItemList_Standard summary {
    cursor: pointer;
    text-decoration: underline;
}
}


/*** for Smart Phone ***/
@media (max-width:400px)
{
.img_flex {
    display: flex;
    width: 100%;
}

.img_flex img {
    margin: 0px;
    padding: 0px;
    width: 25%;
}

.ItemList_Standard summary {
    cursor: pointer;
    text-decoration: underline;
}
}