.indietro {
    width: 86%;
    padding-top: 15px;
    margin: 0 auto;
    text-align: left;
}

@media screen and (min-width:1200px) {
    .video{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin: 0 auto;
    padding: 10px 0px 0px 100px;
}
.video-container {   
      position: relative;
      padding-bottom: 56.25%;
      height: 0;
      overflow: hidden;
      margin: 0 auto;
}
.video-container iframe,
.video-container object,
.video-container embed {
      position: absolute;
      top: 10px;
      left: 0;
      width: 60%;
      height: 60%;
}    
        .flex-app {
        width: 100%;
        height: auto;
        overflow: hidden;
        margin: 0 auto;
        padding: 10px 10px 15px 10px;
        -ms-box-orient: horizontal;
        display: -webkit-box;
        display: -moz-box;
        display: -ms-flexbox;
        display: -moz-flex;
        display: -webkit-flex;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        color: #333;
        background-color: #f7f7f7;
        border-radius: 10px;
        align-items: flex-start;
    }
    .app {
        width: 90%;
        text-align: left;
        height: 240px;
        padding: 10px;
        margin: 20px 0 25px 0;
        text-align: justify;
        border: 1px solid #CCC;
        border-radius: 9px;
        background-color: #FFF;
    }

    .app img {
        float: left;
        padding-top: -20px;
        margin: 0 20px 20px 0;
        border-radius: 9px;
    }

    .app b {
        color: #388E3C;
        font-size: 1.2em;
    }

    .app2 {
        float: left;
        width: 40%;
        text-align: left;
        height: auto;
        margin: 0 10px 20px 10px;
        background-color: #FFF;
        height: auto;
        padding: 15px 10px 15px 30px;
        border-radius: 9px;
    }

    .app2 strong {
        color: #666;
        font-size: 1.1em;
    }
}

@media screen and (max-width:1199px) {
    .video{
    width: 100%;
    height: auto;
    overflow: hidden;
    margin: 0 auto;
    padding: 10px 0px 0px 10px;
}
    .video-container {   
      position: relative;
      padding-bottom: 56.25%;
      height: 0;
      overflow: hidden;
      margin: 0 auto;
}
.video-container iframe,
.video-container object,
.video-container embed {
      position: absolute;
      top: 10px;
      left: 0;
      width: 100%;
      height: 100%;
}    
        .flex-app {
        width: 100%;
        margin: 0 auto;
        height: auto;
        overflow: hidden;
        padding: 0px 10px 10px 10px;
        -ms-box-orient: horizontal;
        display: -webkit-box;
        display: -moz-box;
        display: -ms-flexbox;
        display: -moz-flex;
        display: -webkit-flex;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        color: #333;
        border-radius: 10px;
        background-color: #f7f7f7;
    }
    .app {
        width: 90%;
        text-align: left;
        height: auto;
        margin-top: 20px;
    }

    .app img {
        float: left;
        max-width: 200px;
        height: auto;
        padding-top: -20px;
        margin: 0 20px 10px 0;
        border-radius: 9px;
    }

    .app b {
        color: #388E3C;
        font-size: 1.2em;
    }

    .app2 {
        width: 90%;
        text-align: left;
        height: auto;
        margin: 10px 10px 20px 10px;
        background-color: #FFF;
        height: auto;
        padding: 15px 10px 15px 30px;
        border-radius: 9px;
    }

    .app2 strong {
        color: #666;
        font-size: 1.1em;
    }

}