Method of casting a strip with a width b and a thickness d, comprising the following steps: providing liquid metal in a tundish with an outflow opening for the outflow of the liquid metal at a volume flow V̇ through a pouring spout into a continuous casting mould for the casting of the strip at a predetermined casting speed v cast, measuring the volume flow V̇ of liquid metal in the pouring spout as actual value V̇ Ist by means of a throughflow sensor; detecting the casting meniscus height h of the liquid metal in the continuous casting mould as actual value h IST by means of a casting meniscus measuring device; and regulating the casting meniscus height h and the volume flow V̇ of the liquid metal by means of a regulating device in accordance with the measured actual values h ist, V̇ Ist to predetermined target values h SOLL, V̇ Soll by activating a closure element, which is arranged at the outflow opening of the tundish or in the pouring spout; characterised by calculation in a first regulator of a width correction Δb in dependence on a determined volume flow regulating difference e 1 (t) from the measured actual value V̇ Ist and the predetermined target value V̇ Soll with consideration of the thickness d of the strip to be cast and the casting speed v cast; issue of the calculated width correction Δb in the form of a setting variable u 1 (t) to a first setting element for adjusting at least one narrow side of the continuous casting mould so that a change in the width b of the strip to be cast takes place; calculation of a height change Δh of the casting meniscus height h in dependence on the width correction Δb for issue to a second target-value/actual-value value comparator of a second regulating circuit; determining a casting meniscus height regulating difference e 2 (t) from the measured actual value h IST, the predetermined target value h SOLL and the calculated height change Δh of the casting meniscus height h as input variable for a second regulator of the second regulating circuit for regulating the casting meniscus height h; and regulating the volume flow V̇ with consideration of the changed casting meniscus height h by activating the closure element. providing liquid metal in a tundish with an outflow opening for the outflow of the liquid metal at a volume flow V̇ through a pouring spout into a continuous casting mould for the casting of the strip at a predetermined casting speed v cast, measuring the volume flow V̇ of liquid metal in the pouring spout as actual value V̇ Ist by means of a throughflow sensor; detecting the casting meniscus height h of the liquid metal in the continuous casting mould as actual value h IST by means of a casting meniscus measuring device; and regulating the casting meniscus height h and the volume flow V̇ of the liquid metal by means of a regulating device in accordance with the measured actual values h ist, V̇ Ist to predetermined target values h SOLL, V̇ Soll by activating a closure element, which is arranged at the outflow opening of the tundish or in the pouring spout; characterised by calculation in a first regulator of a width correction Δb in dependence on a determined volume flow regulating difference e 1 (t) from the measured actual value V̇ Ist and the predetermined target value V̇ Soll with consideration of the thickness d of the strip to be cast and the casting speed v cast; issue of the calculated width correction Δb in the form of a setting variable u 1 (t) to a first setting element for adjusting at least one narrow side of the continuous casting mould so that a change in the width b of the strip to be cast takes place; calculation of a height change Δh of the casting meniscus height h in dependence on the width correction Δb for issue to a second target-value/actual-value value comparator of a second regulating circuit; determining a casting meniscus height regulating difference e 2 (t) from the measured actual value h IST, the predetermined target value h SOLL and the calculated height change Δh of the casting meniscus height h as input variable for a second regulator of the second regulating circuit for regulating the casting meniscus height h; and regulating the volume flow V̇ with consideration of the changed casting meniscus height h by activating the closure element.