@media screen and (max-width: 400px) {
    main {
        height: 100vh;
        margin: 0;
        padding: 76px 6px 16px 8px;
    }
    .header-wrap {
        top: 0;
    }
    .bottom-nav {
        bottom: 0;
    }
    .user-area {
        height: calc(100vh - 182px);
    }
}