header {
    background-color: #2a2e39;
    color: #fff;
    line-height: 60px;
    text-indent: 40px;
    font-size: 180%;
    white-space: nowrap;
    overflow: hidden;
    box-shadow: 0 0 5px #000;
}

header .tat,
header .kzn {
    display: none;
}

header.tat .tat {
    display: inline;
}

header.kzn .kzn {
    display: inline;
}

header .btn.menu {
    display: none;
    position: absolute;
    right: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background-color: #841f1f;
    box-shadow: 0 0 5px #000;
    background-image: url(../src/icons/txtw.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 30px;
    cursor: pointer;
}

@media  screen and (max-width: 700px) {
    header {
        line-height: 50px;
        font-size: 150%;
        text-indent: 20px;
    }
    
    header .btn.menu {
        display: block;
    }

    body.infoShowed .btn.menu {
        display: none;
    }
}