Я пытаюсь сделать так, чтобы элементы Div не сжимались и оставались неизменными в BootStrap 4. Я нашел этот код на этом сайте и именно его я хочу сделать. Когда вы сжимаете окно (по горизонтали), оно не сжимает элементы div, а столбцы остаются фиксированными. https://www.tutorialrepublic.com/codelab.php?topic=bootstrap&file=fixed-layout Но потом, когда я копирую точный код и создаю свой собственный HTML, почему он не остается фиксированным, все столбцы сворачиваются и расширяются по вертикали.
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