*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.o {
    background-color: #3A4655;
    text-align: center;
}
.o ul {
    display: inline-flex;
    list-style: none;
    color: white;
}
.o ul li {
    width: 300px;
    margin: 15px;
    padding: 15px;
    border: 1px white solid;
}
.o ul li a {
    text-decoration: none;
    color: white;
}
.o ul li:hover {
    background: #4D5866;
}
.text {
    margin: 10;
    padding: 10;
}