.left-float{
    float: left;
}
.right-float{
    float: right;
}

nav ul{
    margin-left: 7px;
    background-color: #202124;
    overflow: hidden;

}
nav li{
    font-size: 14px;
    font-family: arial,sans-serif;
    list-style: none;
    margin-right: 9px;
    color: #bdc1c6;
    background-color: #202124;
    padding: 7px;

}
nav li:first-child{
    margin-left: -30px;
}
nav li:hover{
    background-color: rgb(77, 77, 77);
}
nav li:nth-last-child(2){
    margin-right: 15px;
    margin-left: 10px;
}