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;
}


.t-btn_md {
    height: 60px;
    font-size: 14px;
    padding-left: 60px;
    padding-right: 60px;
}


.t-btn {
    display: inline-block;
    font-family: 'Raleway';
    border: 0 none;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    font-weight: 500;
    background-image: none;
    cursor: pointer;
    -webkit-appearance: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -o-user-select: none;
    user-select: none;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}