@media (max-width: 768px) {

    table{
        font-size:x-small;
    }
    
    .show-collapse{
        display: block;
    }
    .hide-collapse{
        display: none;
    }

    .expandable-title{
        text-align:center;
    }
    .number-badge{
        margin-bottom: 5px;
    }

    .box-header > h1, .header-actions{
        float:none;
    }

    .navbar {
        padding-top: 5px;
        min-height: 141px;
    }

    .navbar .navbar-brands {
        padding-bottom: 5px;
        min-height: 88px;
    }

    .navbar .challenge-logo{
        max-height: 85px;
        padding-left: 10px;
    }

    /* .navbar .logo {
        max-height: 61px;
    } */
    .navbar .main-logo{
        max-height:80px;
    }
    .navbar .association{
        max-height: 80px;
        padding-top: 0px;
        padding-right: 10px
    }

    .box-header > h1 {
        color: white;
        margin: 15px;
        font-size: 35px;
        letter-spacing: 0px;
    }

    .navbar li.sep {
        padding: 0px 5px !important;
    }

    .section-banner {
        margin-top: 165px;
        background-position: left top;
    }

    .section-banner .col-sm-4 {
        text-align: center;
    }
    
    .section-banner .intro .title{
        margin-top: 20%;
        margin-bottom: 20%;
    }
    .section-banner .intro .title span{
        font-size:xx-large;
    }
    .section-banner .intro .title .inner-title{
        margin-bottom: 0px;
    }
    .section-banner .intro .title .join-btn{
        width: 100%;
        font-size: medium;
    }

    .section-banner .banner-step1 {
        background: url(/images/step-1.png) 0px 85px no-repeat;
        min-height: 224px;
        display: inline-block;
        margin: 0px auto;
    }

    .section-banner .banner-step1 .artwork {
        position: relative;
        left: 80px;
    }

    .section-banner .banner-step2 {
        background: url(/images/step-2.png) 30px 50px no-repeat;
        display: inline-block;
        margin: 20px auto 0px;
    }

    .section-banner .banner-step2 .caption {
        font-size: 20px;
        font-weight: bold;
        padding-top: 140px;
        padding-left: 140px;
        padding-right: 110px;
        margin-left: -140px;
    }

    .section-banner .banner-step2 > img {
        position: relative;
        right: 0px;
        top: auto;
        margin-top: -170px;
        margin-left: 100px;
    }

    .section-banner .banner-step3 {
        background: url(/images/step-3.png) 50px 0px no-repeat;
        min-height: 224px;
        display: inline-block;
        margin: 0px auto;
    }

    .section-banner .banner-step3 .caption {
        font-size: 20px;
        font-weight: bold;
        padding-top: 0px;
        padding-left: 100px;
    }

    .section-banner .banner-step3 > img {
        position: relative;
        bottom: 10px;
        right: 10px;
    }
    .section-banner .countdown-timer .timer-container .timer-value{
        font-size: 20px;
    }
    .section-banner .countdown-timer .timer-container .timer-label{
        font-size: 14px;
    }

    .section-leaderboard .leaderboard-content {
        padding: 30px 10px;
    }

    .section-leaderboard .leaderboard-content {
        background: none;
    }

    .section-faq .faq-content {
        padding: 30px 10px;
    }

    .section-faq .faq-content {
        background: none;
    }

    .section-faq .inner-box-title{
        display:block;
    }

    .section-howto .step-2, .section-howto .step-3, .section-howto .step-4, .section-howto .step-5 {
        margin-top: 50px;
    }

    .section-howto .howto-content .steps-container {
        background: none;
    }

    .section-howto .step-image {
        border-top: 0px solid black;
        border-bottom: 0px solid black;
        padding: 5px 0px;
    }

    .section-howto .step-3 .step-text-2 {
        background-color: #efefef;
        color: rgb(1, 176, 169);
        font-size: 20px;
        font-weight: bold;
        display: inline-block;
        border-radius: 10px;
        padding: 5px 30px;
    }

    .section-howto .step-3 .code-phone {
        position: relative;
        width: 0px;
        right: auto;
        bottom: 0px;
        display: none;
    }

    .section-join .join-content{
        padding:0px;
        margin-bottom:15px;
    }

    .section-user-guide .google-fit{
        margin-bottom:22px;
    }

    .section-user-guide .apple-fit{
        margin-bottom:-1px;
    }

    .section-contact .contact-content > .container {
        padding: 0px 0px;
    }

}

@media (max-width: 450px) {
    .section-banner .col-sm-4 {
        text-align: left;
    }
    .show-collapse{
        display: block;
    }
    .hide-collapse{
        display: none;
    }
    .section-banner .banner-step3 {
        background: url(/images/step-3.png) 20px 0px no-repeat;
        min-height: 224px;
        display: inline-block;
        margin: 0px auto;
    }
}