* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
}

.header {
    overflow: hidden;
    background-color: #f1f1f142;
    /*padding: 20px 10px;*/
}

    .header a {
        float: left;
        color: #da0808;
        text-align: center;
        padding: 5px;
        text-decoration: none;
        font-size: 25px;
        line-height: 10px;
        border-radius: 4px;
        margin-right: 10px;
    }

.logo {
    font-size: 25px;
    font-weight: bold;
}

.header a:hover {
    background-color: #ddd;
    color: red;
}

.header a.active {
    background-color: dodgerblue;
    color: white;
}

.header-right {
    float: right;
}
/*.ancor {
          margin-right: 10px;
          color: red;
    }*/
@@media screen and (max-width: 500px) {
    .header a {
        float: none;
        display: block;
        text-align: left;
    }

    .header-right {
        float: none;
    }
}