body {
    margin: 0;
    font-family: monospace;
}

.first_menu {
    background: bisque;
    height: 125px;
}

.img_logo {
    width: 250px;
    margin-right: 5px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.a_holder {
    font-family: sans-serif;
    margin-top: 0;
    height: 55px;
    display: flex;
    background: linear-gradient(200deg, rgb(200, 207, 221), cyan);
}

.li {
    margin-left: 10%;
    list-style-type: none;
    margin-top: 5px;
    width: 90px;
    transition: 1s;
    padding: 5px;
}

.a_1 {
    font: bolder;
    text-decoration: none;
    color: black;
    text-transform: uppercase;
    font-size: 15px;
}

.li:hover {
    background-color: cyan;
}


/*footer-------*/

.ft {
    width: 100%;
    height: 80px;
    background-color: rgba(117, 114, 114, 0.726);
    color: white;
    display: block;
    font-family: sans-serif;
    margin-bottom: 0px;
}

.a_ft_holder {
    display: block;
    margin-bottom: 0px;
}

.a_ft {
    text-decoration: none;
    color: white;
    margin-top: 9px;
    margin-bottom: 0px;
}

.copy {
    margin-bottom: 0px;
}

.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    margin-bottom: 5px;
}


/*footer-------*/

@media only screen and (max-width: 428px) {
    body {
        margin: 0;
        font-family: monospace;
    }
    .first_menu {
        background: bisque;
        width: 100%;
        height: auto;
    }
    .img_logo {
        width: 100%;
        height: auto;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }
    .a_holder {
        font-family: sans-serif;
        margin-top: 0;
        height: auto;
        display: flex;
        background: linear-gradient(200deg, rgb(200, 207, 221), cyan);
    }
    .li {
        margin-left: 2%;
        list-style-type: none;
        margin-top: 5px;
        width: auto;
        transition: 1s;
        padding: 5px;
    }
    .a_1 {
        font: bolder;
        text-decoration: none;
        color: black;
        text-transform: uppercase;
        font-size: 9px;
    }
    .li:hover {
        background-color: cyan;
    }
    /*footer-------*/
    .ft {
        width: 100%;
        height: 80px;
        background-color: rgba(117, 114, 114, 0.726);
        color: white;
        display: block;
        font-family: sans-serif;
        margin-bottom: 0px;
    }
    .a_ft_holder {
        display: block;
        margin-bottom: 0px;
    }
    .a_ft {
        text-decoration: none;
        color: white;
        margin-top: 9px;
        margin-bottom: 0px;
    }
    .copy {
        margin-bottom: 0px;
    }
    .center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        margin-bottom: 5px;
    }
    /*footer-------*/
}