.youtube-iframe{
    max-width:560px;
    width: 100%;
    height:315px;
    display: block;
    margin: 10px auto 10px auto;
}

@media screen and (max-width: 450px){
    .reader-body .news-panel-activity .container{
        display: block;
    }
        .reader-body .news-panel-activity .container .element-show-counter{
            margin-left: 0;
        }
}