iframe[src*="youtu"], iframe[src*="facebook"], iframe[src*="group-of-constructor"],
iframe[data-src*="youtu"], iframe[data-src*="facebook"], iframe[data-src*="group-of-constructor"] {
   width: 100% !important;
   max-width: 800px;
   /*height: 562px !important;*/
}
.video_iframeoverlay {
   width: 100% !important;
   max-width: 800px;
   height: 62px !important;
   position:relative;
   background-image: linear-gradient(170deg,#1a6b80,#66b8cc);
   position:relative;
    -webkit-display:flex;
       -moz-display:flex;
        -ms-display:flex;
            display:flex;
    -webkit-flex-direction:column;
       -moz-flex-direction:column;
        -ms-flex-direction:column;
            flex-direction:column;
    -webkit-justify-content:center;
       -moz-justify-content:center;
        -ms-justify-content:center;
            justify-content:center;
}
.video_iframeoverlay p {
   padding: 0 1.5rem;
   text-align: center;
   margin: 0;
   z-index: 2;
   position:absolute;
}
.video_iframeoverlay #unlockiframe {
   background: silver;
   color: #fff;
   padding: 0.5rem;
   border-radius: 0.5rem;
   cursor: pointer;
   display: block;
   margin: 0.5rem auto 0;
   width: 12rem;
   max-width:70%;
   z-index: 2;
}
.video_iframeoverlay #unlockiframe:hover {
   background: blue;
}

.hinweis {width:350px;font-size: 12px;margin: 0.10px 0 0.1rem;line-height: 1.05rem;}