.instagram-shortcode{
  text-align: center;
  margin-bottom: 20px;
  padding:1px;
}

.instagram-shortcode .instagram-media, .instagram-shortcode iframe{
  background:#FFF;
  border:0;
  border-radius:3px;
  box-shadow:0 0 0px 0 rgba(0,0,0,0.5),0 1px 0px 0 rgba(0,0,0,0.15)!important;
  margin: 0 auto!important;
  max-width:540px;
  min-width:326px;
  padding:0; width:99.375%;
  width:-webkit-calc(100% - 2px);
  width:calc(100% - 2px);
}