/* 通用 */
.single-line {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* main */
#main {
    background: #fff;
    margin: auto;
    width: 100%;
    min-height: 100vh;
}

@media (min-width: 769px) {
    #main {
        width: 375px;
    }
}