html {
    /* укажи цвет фона html */
    background: #111;
}


.t-popup__container {

    border-radius: 1px;
}


.tlk-lectures__header-title {
    font-size: 34px;
    font-weight: 600;
    letter-spacing: -1.5px;
}

.tlk-lecture__homework-description {
    margin-top: 20px;
    color: rgba(0,0,0,.5);
    font-size: 16px;
    line-height: 150%;
    display: none;
}


.t-checkbox__indicator {

    border-radius: 30px;
}