@media (min-width: 425px) {

    /*Retour CRF*/
    .return-txt {
        font-weight: bold;
        color: #fff;
        font-size: 20px;
        margin-top: 10px;
        margin-bottom: -10px;
        margin-left: 10px;
        display: block;
    }

    .return-txt-small {
        color: #fff;
        display: inline-block;
        margin-left: 10px;
        display: block;
    }
}

/*Small devices (landscape phones, 576px and up)*/
@media (min-width: 576px) {
    .title-site {
        height: 97px;
        padding: 10px 0px 0px 50px;
    }

    .title-site h1 {
        font-size: 30px;
        line-height: 30px;
        letter-spacing: 3px;
    }

    .big-heart {
        font-size: 40px;
    }

    .icon-crf {
        background: url('../img/logo-med.png') #fff;
        width: 158px;
        height: 97px;
    }
}

/*Medium devices (tablets, 768px and up)*/
@media (min-width: 768px) {

    /*Blue top*/
    .blue-top {

        transform: skewY(1deg);
        position: absolute;
        top: -20px;
        z-index: -1;
    }

    /*Retour CRF*/
    .return-txt-small {
        display: none;
    }

    .return-txt-smaller {
        color: #fff;
        display: inline-block;
        margin-left: 10px;
        display: block;
    }

    /*Title website*/
    .title-site {
        height: 130px;
        padding: 10px 0px 0px 40px;
    }

    .title-site h1 {
        margin: 0;
        padding: 0;
        font-size: 40px;
        line-height: 30px;
        letter-spacing: 3px;
    }

    .big-heart {
        font-size: 60px;
    }

    .icon-crf {
        background: url('../img/logo.png') #fff;
        width: 212px;
        height: 130px;
    }

    .title-block-project h3,
    .btn_tabs,
    .btn_tabs_false {
        font-weight: bold;
        font-size: calc(2rem);
    }

    /*Block projects*/
    .content-block-project{
        display: block;
    }
    .see_more{
        display: none;
    }

    .footer {
        line-height: 50px;
    }

}

/*Large devices (desktops, 992px and up)*/
@media (min-width: 992px) {
    .block-fb-box {
        margin-top: 0px;
    }

    .blue-box,
    .fb-box {
        font-size: 15px;
    }
}

/*X-Large devices (large desktops, 1200px and up)*/
@media (min-width: 1200px) {

    .blue-box,
    .fb-box {
        font-size: 15px;
    }

    .title-block-project h3,
    .btn_tabs,
    .btn_tabs_false {
        font-weight: bold;
        font-size: calc(1.8rem);
    }

    .img-video {
        margin-left: 100px;
        margin-right: 100px;

    }
}

/*XX-Large devices (larger desktops, 1400px and up)*/
@media (min-width: 1400px) {}