@media (max-width: 1350px) {
    .navbar li a {
        padding: 0px 5%;
        font-size: 23px;
    }

    .navbar ul {
        width: 700px;
    }

    #little-ul {
        font-size: 15px;
    }

    .main-content-left{
        font-size: 20px;
    }

    .main-content-right{
        font-size: 20px;
    }
}

@media (max-width: 880px) {
    .navbar li a {
        padding: 0px 3.2%;
        font-size: 18px;
    }

    .navbar ul {
        width: 400px;
    }

    #main-content {
        text-align: center;
    }

    .right-game-image {
        width: 70%;
        float: none;
        text-align: center;
    }

    .left-game-image {
        width: 70%;
        float: none;
        text-align: center;
    }

    #links {
        text-align: left;
    }

    #little-ul {
        font-size: 13px;
    }

    .main-content-left{
        margin-left: 5%;
        margin-right: 5%;
        float: none;
        font-size: 15px;
        text-align: center;
    }

    .main-content-right{
        margin-left: 5%;
        margin-right: 5%;
        float: none;
        font-size: 15px;
    }

    .main-content-left-authors {
        padding-top: 0%;
        margin-right: 5%;
        margin-left: 0%;
        text-align: justify;
        float: none;
        font-size: 15px;
        list-style-type: none;
    }

    #features {
        margin-right: 5%;
        margin-left: 5%;
        text-align: justify;
        line-height: 42px;
    }

    video {
        width: 480px;
        height: 270px;
    }
}

@media (max-width: 550px) {
    .navbar li a {
        padding: 0px 2%;
        float: center;
        font-size: 15px;
    }

    .navbar ul {
        width: 500px;
    }

    #header-logo {
        display: none;
    }

    video {
        width: 300px;
        height: 171px;
    }
}