.pilasa-aparat-video{
position:relative;
padding-top:56.25%;
width:100%;
overflow:hidden;
border-radius:12px;
background:#000;
}

.pilasa-aparat-video iframe{
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
border:0;
}

/* موبایل */

@media (max-width:768px){

.pilasa-aparat-video{
border-radius:8px;
}

}