.avia-section.av-lcq194lv-9b7047d4895aa6d3367a27aa12b93b63{background-repeat:no-repeat;background-image:url(https://stedelijkstudies.com/wp-content/uploads/2023/01/Fig-1-An-Opera-of-the-world.jpg);background-position:50% 100%;background-attachment:scroll}.flex_column.av-8nw1tyb-06ce567f168678c9d380126af68ed071{border-radius:0 0 0 0;padding:30px 0 0 0}#top .hr.hr-invisible.av-81x7r43-1d799e8c57e2303443da0abd7cd14aad{height:50px}#top .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c{padding-bottom:10px;color:#fff;font-size:30px}body .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-special-heading-tag .heading-char{font-size:25px}#top #wrap_all .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-special-heading-tag{font-size:30px}.av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .special-heading-inner-border{border-color:#fff}.av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-subheading{font-size:15px}#top .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787{padding-bottom:0;color:#bc9600;font-size:74px}body .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-special-heading-tag .heading-char{font-size:25px}#top #wrap_all .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-special-heading-tag{font-size:74px}.av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .special-heading-inner-border{border-color:#bc9600}.av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-subheading{font-size:32px;color:#4b4b4b}#top .av_textblock_section.av-lcq0wzw3-c3f0fa352c1505a1771f4d475f9c9442 .avia_textblock{font-size:20px}.flex_column.av-70c86w3-6f1caa521d3d87fd44eb63a61a933e75{border-radius:0 0 0 0}.avia-section.av-6kh0x43-f3933d7ee9c629b300ad91444576b198{margin-top:0;margin-bottom:-50px}#top .flex_column.av-lcq1rz8p-af12b9d4f8d55f3d0b98e8a889e36692{margin-top:-50px;margin-bottom:20px}.responsive #top #wrap_all .flex_column.av-lcq1rz8p-af12b9d4f8d55f3d0b98e8a889e36692{margin-top:-50px;margin-bottom:20px}#top .av_textblock_section.av-6cojm0z-fcce0e768960a9c7b6f748c4cceb0caf .avia_textblock{font-size:13px;color:gray}#top .flex_column.av-23z7j7-72633e1779b3e9a5f39e7f3285466e5c{margin-top:-20px;margin-bottom:0}.flex_column.av-23z7j7-72633e1779b3e9a5f39e7f3285466e5c{border-radius:0 0 0 0;padding:0 0 0 0}.responsive #top #wrap_all .flex_column.av-23z7j7-72633e1779b3e9a5f39e7f3285466e5c{margin-top:-20px;margin-bottom:0}#top .av_textblock_section.av-lcq1399q-84f36d7e38d098c629edf859bb5baec2 .avia_textblock{font-size:24px}#top .hr.av-lcq1q8ri-6c2c6a8ada21483c0ca2d075c39fd94d{margin-top:0;margin-bottom:30px}.hr.av-lcq1q8ri-6c2c6a8ada21483c0ca2d075c39fd94d .hr-inner{width:17%;border-color:#bc9600}#top .av_textblock_section.av-lcq1r4u9-4254654713fab6b37461488de4855583 .avia_textblock{font-size:24px}.flex_column.av-5gowulf-a52d63596e549e6bb4cb72d06cf12b75{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-lcq1kjen-92df9e5ac7be19226916cd5610e56534{padding-bottom:0}body .av-special-heading.av-lcq1kjen-92df9e5ac7be19226916cd5610e56534 .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-lcq1kjen-92df9e5ac7be19226916cd5610e56534 .av-subheading{font-size:15px}.flex_column.av-5qf1vgj-20070bf1f9de564525f8bc12fa81bb1c{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-lcqcleso-849e11a8ff2e105d7b27f8a3096e6fea{padding-bottom:0}body .av-special-heading.av-lcqcleso-849e11a8ff2e105d7b27f8a3096e6fea .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-lcqcleso-849e11a8ff2e105d7b27f8a3096e6fea .av-subheading{font-size:15px}.flex_column.av-h9zuf7-63b6636bce7447fbf26c2cfc2b21d8ec{border-radius:0 0 0 0;padding:30px 30px 10px 30px;background-color:#fff}.avia-image-container.av-4an43vn-70ee9d414d14eec9b3bdc60e07f120c0 img.avia_image{box-shadow:none}.avia-image-container.av-4an43vn-70ee9d414d14eec9b3bdc60e07f120c0 .av-image-caption-overlay-center{color:#fff}#top .av_textblock_section.av-3yb562r-d9b0c2dcec0a7855ef44f312563074c3 .avia_textblock{font-size:14px}.flex_column.av-5gowulf-13-050468391c0fc645256c36fec6501fdb{border-radius:0 0 0 0;padding:0 0 0 0}.flex_column.av-4qi4y6b-63aaf42af5c41d87e12200827c37da2f{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-lcqcv2ns-b8ba6b297882246dc76d2ee2d10e9748{padding-bottom:0}body .av-special-heading.av-lcqcv2ns-b8ba6b297882246dc76d2ee2d10e9748 .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-lcqcv2ns-b8ba6b297882246dc76d2ee2d10e9748 .av-subheading{font-size:15px}.flex_column.av-4kzcbab-c9371aec30c0c3a6692cbf89e05cc3c7{border-radius:0 0 0 0;padding:30px 30px 10px 30px;background-color:#fff}.avia-image-container.av-lcqcyvry-027c71a257d5af052f3e27c7905e779b img.avia_image{box-shadow:none}.avia-image-container.av-lcqcyvry-027c71a257d5af052f3e27c7905e779b .av-image-caption-overlay-center{color:#fff}#top .av_textblock_section.av-lcqcxyvd-6c1d0c7447fc4e9081c306e9b44f5304 .avia_textblock{font-size:14px}.flex_column.av-3xkaioz-c3cae776c48f45bb08729ba24592949e{border-radius:0 0 0 0;padding:0 0 0 0}.flex_column.av-3ctc34z-faf75d3e9c226fea08a236e618e29fda{border-radius:0 0 0 0;padding:30px 30px 10px 30px;background-color:#fff}.avia-image-container.av-lcqd3bo6-992749e5a20373ff8deda83e48ecfc89 img.avia_image{box-shadow:none}.avia-image-container.av-lcqd3bo6-992749e5a20373ff8deda83e48ecfc89 .av-image-caption-overlay-center{color:#fff}#top .av_textblock_section.av-lcqd2m2u-399dee39069c849bc2e37d86efd8c20f .avia_textblock{font-size:14px}.flex_column.av-2yxgjmr-663b6b55cdc02ae36e08ceaeeadbdc5c{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-lcqd46b6-72fb29e52be10034b45b2f1bd250039f{padding-bottom:0}body .av-special-heading.av-lcqd46b6-72fb29e52be10034b45b2f1bd250039f .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-lcqd46b6-72fb29e52be10034b45b2f1bd250039f .av-subheading{font-size:15px}.flex_column.av-2ev5gir-b5144dc4e0dec10636e23e88f137fb5d{border-radius:0 0 0 0;padding:30px 30px 10px 30px;background-color:#fff}.avia-image-container.av-lcqd7e54-12cf0091fdd829e339560f5d36fc9d66 img.avia_image{box-shadow:none}.avia-image-container.av-lcqd7e54-12cf0091fdd829e339560f5d36fc9d66 .av-image-caption-overlay-center{color:#fff}#top .av_textblock_section.av-lcqd6to2-049275abab03209c0f18858f5fef0af5 .avia_textblock{font-size:14px}.flex_column.av-23inydf-b76c1d5a414a4ace39446f511c6c96bf{border-radius:0 0 0 0;padding:0 0 0 0}.flex_column.av-1nyrx37-e439d989b538d3e46409971ae336168e{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-187dtkz-d59eed1451c90ab690f854f4ed900a10{padding-bottom:0}body .av-special-heading.av-187dtkz-d59eed1451c90ab690f854f4ed900a10 .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-187dtkz-d59eed1451c90ab690f854f4ed900a10 .av-subheading{font-size:15px}.flex_column.av-v32ndv-be99295c9b9ad099e41f3e4af203cddc{border-radius:0 0 0 0;padding:0 0 0 0}#top .av-special-heading.av-lcqdcoib-384d0abd16894f9a70f30b8d3af5b719{padding-bottom:0}body .av-special-heading.av-lcqdcoib-384d0abd16894f9a70f30b8d3af5b719 .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-lcqdcoib-384d0abd16894f9a70f30b8d3af5b719 .av-subheading{font-size:15px}.flex_column.av-jr2air-03c43b72a6495135c422981bfc9a33f8{border-radius:0 0 0 0;padding:0 0 0 0}#top .flex_column.av-14v49dv-029219b451e6dce90936c973d804943a{margin-top:70px;margin-bottom:30px}.responsive #top #wrap_all .flex_column.av-14v49dv-029219b451e6dce90936c973d804943a{margin-top:70px;margin-bottom:30px}.flex_column.av-39k84g3-7809263d92a54f7c0c9f3a20dd39be9a{border-radius:0 0 0 0;padding:20px 30px 10px 30px;background-color:#fff}#top .av-special-heading.av-2u2ryqr-ee0dd425d75232c3ff074e2ecd7da1df{padding-bottom:0}body .av-special-heading.av-2u2ryqr-ee0dd425d75232c3ff074e2ecd7da1df .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-2u2ryqr-ee0dd425d75232c3ff074e2ecd7da1df .av-subheading{font-size:15px}#top .av_textblock_section.av-lcq11h7r-a227b537f5d8620dd52170ad693db9ac .avia_textblock{font-size:14px}.flex_column.av-2jsvclf-d0831cd0bfade733d5e5a9070dbd77c2{border-radius:0 0 0 0}#top .av_textblock_section.av-lcq0yihe-45b13e408c559c86b6486773aa313531 .avia_textblock{font-size:14px}.flex_column.av-1xlccbn-0228e44ba76cdedc737186fcbfdcdb95{border-radius:0 0 0 0;padding:0 0 0 0}#top .hr.av-1oa7fwj-27144f0fc0afbe1d84ce45d30a87f40e{margin-top:0;margin-bottom:30px}.hr.av-1oa7fwj-27144f0fc0afbe1d84ce45d30a87f40e .hr-inner{width:17%;border-color:#1d1d1f}#top .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5{padding-bottom:30px;font-size:30px}body .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-special-heading-tag .heading-char{font-size:25px}#top #wrap_all .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-special-heading-tag{font-size:30px}.av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-subheading{font-size:18px}@media only screen and (min-width:768px) and (max-width:989px){#top #wrap_all .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-special-heading-tag{font-size:26px}#top #wrap_all .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-special-heading-tag{font-size:48px}.av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-subheading{font-size:32px}#top .av_textblock_section.av-lcq0wzw3-c3f0fa352c1505a1771f4d475f9c9442 .avia_textblock{font-size:20px}#top .av_textblock_section.av-lcq1399q-84f36d7e38d098c629edf859bb5baec2 .avia_textblock{font-size:24px}#top .av_textblock_section.av-lcq1r4u9-4254654713fab6b37461488de4855583 .avia_textblock{font-size:24px}#top .av_textblock_section.av-3yb562r-d9b0c2dcec0a7855ef44f312563074c3 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqcxyvd-6c1d0c7447fc4e9081c306e9b44f5304 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd2m2u-399dee39069c849bc2e37d86efd8c20f .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd6to2-049275abab03209c0f18858f5fef0af5 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq11h7r-a227b537f5d8620dd52170ad693db9ac .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq0yihe-45b13e408c559c86b6486773aa313531 .avia_textblock{font-size:14px}#top #wrap_all .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-special-heading-tag{font-size:28px}.av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-subheading{font-size:18px}}@media only screen and (min-width:480px) and (max-width:767px){#top #wrap_all .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-special-heading-tag{font-size:26px}#top #wrap_all .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-special-heading-tag{font-size:48px}.av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-subheading{font-size:26px}#top .av_textblock_section.av-lcq0wzw3-c3f0fa352c1505a1771f4d475f9c9442 .avia_textblock{font-size:20px}#top .av_textblock_section.av-lcq1399q-84f36d7e38d098c629edf859bb5baec2 .avia_textblock{font-size:22px}#top .av_textblock_section.av-lcq1r4u9-4254654713fab6b37461488de4855583 .avia_textblock{font-size:22px}#top .av_textblock_section.av-3yb562r-d9b0c2dcec0a7855ef44f312563074c3 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqcxyvd-6c1d0c7447fc4e9081c306e9b44f5304 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd2m2u-399dee39069c849bc2e37d86efd8c20f .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd6to2-049275abab03209c0f18858f5fef0af5 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq11h7r-a227b537f5d8620dd52170ad693db9ac .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq0yihe-45b13e408c559c86b6486773aa313531 .avia_textblock{font-size:14px}#top #wrap_all .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-special-heading-tag{font-size:28px}.av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-subheading{font-size:18px}}@media only screen and (max-width:479px){#top #wrap_all .av-special-heading.av-7sz23oj-f3a55704e3d9e0f6af58470b6af5218c .av-special-heading-tag{font-size:22px}#top #wrap_all .av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-special-heading-tag{font-size:46px}.av-special-heading.av-lcq0wo8s-5f79a735a73e2d6d1d86688ddc21d787 .av-subheading{font-size:26px}#top .av_textblock_section.av-lcq0wzw3-c3f0fa352c1505a1771f4d475f9c9442 .avia_textblock{font-size:20px}#top .flex_column.av-lcq1rz8p-af12b9d4f8d55f3d0b98e8a889e36692{margin-top:-50px;margin-bottom:10px}.responsive #top #wrap_all .flex_column.av-lcq1rz8p-af12b9d4f8d55f3d0b98e8a889e36692{margin-top:-50px;margin-bottom:10px}#top .av_textblock_section.av-lcq1399q-84f36d7e38d098c629edf859bb5baec2 .avia_textblock{font-size:22px}#top .av_textblock_section.av-lcq1r4u9-4254654713fab6b37461488de4855583 .avia_textblock{font-size:22px}#top .av_textblock_section.av-3yb562r-d9b0c2dcec0a7855ef44f312563074c3 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqcxyvd-6c1d0c7447fc4e9081c306e9b44f5304 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd2m2u-399dee39069c849bc2e37d86efd8c20f .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcqd6to2-049275abab03209c0f18858f5fef0af5 .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq11h7r-a227b537f5d8620dd52170ad693db9ac .avia_textblock{font-size:14px}#top .av_textblock_section.av-lcq0yihe-45b13e408c559c86b6486773aa313531 .avia_textblock{font-size:14px}#top #wrap_all .av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-special-heading-tag{font-size:26px}.av-special-heading.av-10gmo5f-45b7bb5f7040d4de31ffb137fb367da5 .av-subheading{font-size:18px}}