.capa_channel
{
 background-repeat: no-repeat;
 background-size: 100% auto;
 background-position: center center;
 background-size: cover;
 height:130px;
}
@media (min-width: 576px) {
   .capa_channel
{
    background-repeat: no-repeat;
    background-size: 100% auto;
    background-position: center center;
    background-size: cover;
    height:150px;

}
}
@media (min-width: 768px) {
   .capa_channel
{
    background-repeat: no-repeat;
    background-size: 100% auto;
    background-position: center center;
    background-size: cover;
    height:200px;

}
}
@media (min-width: 992px) {
   .capa_channel
{
    background-repeat: no-repeat;
    background-size: 100% auto;
    background-position: center center;
    background-size: cover;
    height:250px;

}
}
@media (min-width: 1200px) {
   .capa_channel
{
    background-repeat: no-repeat;
    background-size: 100% auto;
    background-position: center center;
    background-size: cover;
    height:300px;

}
}