.mult-video-container {
   text-align: center;
   padding: 25px;
}
.mult-header {
   padding: 25px;
   border-bottom: 1px solid #d4d4d4;
   margin-bottom: 25px;
}
.mult-video {
   width: 256px; 
   height: 144px;
}
.container-video{
   display: inline-block;
   padding: 25px;
   background-color: white;
   border: 1px solid #d4d4d4;
}

/* Extra small devices (phones, less than 768px) */
/* No media query since this is the default in Bootstrap */

/* Small devices (tablets, 768px and up) */
@media (min-width: 768px) {
   .mult-video {
      width: 640px;
      height: 360px;
   }
}
/* Medium devices (desktops, 992px and up) */
@media (min-width: 992px) {
   .mult-video {
      width: 700px;
      height: 480px;
   }
}
/* Large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
   
   .mult-video {
      width: 900px;
      height: 600px;
   }
}

/* 720p (HD) - 1280 x 720 pixeles
   480p - 854 x 480 pixeles
   360p - 640 x 360 pixeles
   240p - 426 x 240 pixeles
   144p – 256 x 144 pixeles   */