#menu {
    font-family: Verdana, sans-serif;
    font-size: 11px;
    margin: 0;
    padding: 0;
    list-style: none;
    display: table;
    width: 99.5%;
}

    #menu li {
        border-bottom: 2px solid grey;
        display: inline;
        /*   width: 150px;*/
        height: 100%;
        margin: 1px;
        text-align: center;
        /*float: left; elementi su singola riga */
        display: table-cell;
        width: 210px;
        font-size: 30px;
        float: left;
        border-radius: 15px;
        border: solid 2px black;
        box-shadow:4px 6px 12px rgba(0, 0, 0, 0,6);
    }


        #menu li a {
      display: block;
*/ font-weight: bold;
            line-height: 10px;
            text-decoration: none;
            width: 150px;
            *      height: 30px;
            *text-align: center;
            list-style: none;

        }
        <!--

        #menu li:hover {
            background-color: aqua;
            border-bottom: 2px solid grey;
            transition: background-color 0.5s ease, color 0.5s ease, box-shadow 0.3s ease;
            transform: scale(1.02);
            transition: 2s;
        }

p {
    font-family: ;
    height:100%;
    background-color: azure;
    border-radius: 10px;
    margin-left: 2%;
    margin-right: 2%;
    text-align: left;
    font-size: 150%;
}

#button2 {
    background-color: rgba(0, 0, 200, 0.6);
    border-radius: 4px;
    text-align: center;
    box-shadow: 4px 2px 10px rgba(0, 0, 0, 0.6);
}
    #button2:hover {
        background-color: royalblue;
        border-bottom: 2px solid grey;
        transition: background-color 0.5s ease, color 0.5s ease, box-shadow 0.3s ease;
        transform: scale(1.03);
        transition: 2s;

    }
#anto {
    position: fixed;
    border-radius: 20px;
    height: 32px;
    width: 37px;
    text-align: center
}

#cani {
    display: inline;
    text-align: center;
    display: table-cell;
    float: left;
    border-radius: 10px;
    border: solid 2px black;
    box-shadow: 4px 6px 12px rgba(0, 0, 0, 0.6);
    line-height: 10px;
    text-decoration: none;
    width:300px;
    text-align: center;
    list-style: none;
}