* {
    margin: 0px;
    padding: 0px;
}

.clear {
    clear: both;
}

img {
    width: 100%;
    height: auto;
}

ul {
    background: #005EC3;
}

li {
    width: 11%;
    float: left;
    list-style: none;
}

li a {
    display: inline-block;
    width: 100%;
    color: white;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    text-align: center;
    line-height: 50px;
}

li a:hover {
    background: #016FFC;
}

@media screen and (max-width:850px) {
    li {
        width: 11%;
    }
    li a {
        font-size: 18px;
    }
}

@media screen and (max-width:700px) {
    li {
        width: 11%;
    }
    li a {
        font-size: 14px;
    }
}

@media screen and (max-width:505px) {
    li {
        width: 24.3%;
        border: 1px solid cyan;
        border-radius: 5px;
    }
    li a {
        font-size: 16px;
    }
}