Hi Kevin,
the problem is resolved,
thank you so much.
Post my code here if somebody need.
/*change video iframe setting in woocomerce custom tab*/
div#tab-video iframe {
width: 65% !important;
height: 450px !important;
}
div#tab-video p {
margin-left: 25%;
margin-right: auto;
}
@media ( max-width: 1300px ) {
div#tab-video p {
margin-left: 15%;
margin-right: auto;
}
div#tab-video iframe {
width: 75% !important;
height: 500px !important;
}
}
@media ( max-width: 1000px ) {
div#tab-video p {
margin-left: auto;
margin-right: auto;
}
div#tab-video iframe {
width: 100% !important;
height: 500px !important;
}
}
@media ( max-width: 700px ) {
div#tab-video iframe {
width: 100% !important;
height: 400px !important;
}
}
@media ( max-width: 480px ) {
div#tab-video p {
margin-left: 2%;
margin-right: auto;
}
div#tab-video iframe {
width: 100% !important;
height: 300px !important;
}
}