I’m setting a media max-width to change a margin-top property on mobile.
It works on my iphone and windows computer (chrome) but doesnt work on my Mac (chrome too). Maybe a problem of resolution but the margin-top is not the same when resizing the windows to mobile size on mac.

Here is my CSS :

.mobcont {
  margin-top:640px;
}

@media (max-width: 767px) {
  /* Appliquer une hauteur de 200px uniquement sur les appareils mobiles */
  .mobcont {
    margin-top: 355px !important;
  }
}

Thanks !

I tried to change the max-width value but nothing worked.
Added <meta name="viewport" content="width=device-width, initial-scale=1.0"> to my file but nothing changes