nd{aligned}`,
          },
          {
            title: '<kbd>\\stackrel</kbd>',
            latex: `x\\stackrel{a}{=}x`,
          },

          {
            title: 'Big delimiters',
            latex: `\\begin{aligned}
  \\bigl\\langle a \\bigm\\| b \\bigr\\rangle \\big|\\\\
  \\Bigl\\langle a \\Bigm\\| b \\Bigr\\rangle \\Big|\\\\
  \\biggl\\langle a \\biggm\\| b \\biggr\\rangle \\bigg|\\\\
  \\Biggl\\langle a \\Biggm\\| b \\Biggr\\rangle \\Bigg|\\\\
\\end{aligned}`,
          },

          {
         