header {
    width: 100%;
    height: 15vmin;
    background: #3d3d3d no-repeat center url("../images/header-background.png");
    background-size: cover;
    position: fixed;
    top: 0;
    margin: 0;
    padding: 0;
}
.title {
    width: 100%;
    height: 60%;
    font-size: 6vmin;
    font-style: italic;
    display: flex;
    align-items: center;
    justify-content: center;
}
.company-logo {
    margin: 0;
    width: 10%;
    height: 100%;
    background: no-repeat center url("../images/favicon.png");
    background-size: contain;
}
.menu{
    width: 100%;
    height: 40%;
    margin: 0;
    padding: 0;
    display: flex;
}
.menu-text {
    width: 90%;
    height: 100%;
}

.menu-text ul {
    margin: 0;
    padding: 1vmin;
}
.menu-text li {
    float: left;
    list-style: none;
    text-transform: uppercase;
    font-size: 3vmin;
    padding-right: 0;
    margin-right: 0;
}

.menu-text a {
    margin-left: 2.5vmin;
    margin-right: 2.5vmin;
    text-decoration: none;
    color: antiquewhite;
}
.lang {

    width: 10%;
    height: 100%;
    position: relative;
}
.lang-vertical {
    margin: 0;
    position: absolute;
    top: 50%;
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
}
.lang button {
    width: 4vmin;
    height: 4vmin;
    border-style: none;

}
/*#button-lang {*/
/*    */
/*    background-size: contain;*/
/*}*/
/*#button-lang-cz {*/
/*    background: no-repeat center url("../images/cz-flag.png");*/
/*    background-size: contain;*/
/*}*/