made it Responsive

My first Review and Topic: with a view clicks I made it responsive.
`
#karartma{
width:100% !important;
}
#pencere iframe{
width:100%; height:100%;
}
#kutu .close {
background-size:36px !important;
height:36px !important;
width:36px !important;
}
/* Video Sice */
#pencere {
width:800px !important;
height:485px !important;
left: 50% !important;
margin-left:-400px;
top: 20% !important;
}

@media only screen and (max-width: 768px) {
#pencere {
width:640px !important;
height:390px !important;
margin-left:-320px !important;
}
}
@media only screen and (max-width: 567px) {
#pencere {
width:480px !important;
height:290px !important;
margin-left:-240px !important;
}
}
@media only screen and (max-width: 480px) {
#pencere {
width:320px !important;
height:194px !important;
left: 50% !important;
margin-left:-160px !important;
}
}
@media only screen and (max-width: 380px) {
#pencere, #karartma {
display:none !important;
}
}