The only way to style the caret/cursor beyond changing the color is with a plugin. Using the Ninja cursor plugin, along with some CSS to disable the animation effects and widen the cursor, might be what you are looking for.
The only way to style the caret/cursor beyond changing the color is with a plugin. Using the Ninja cursor plugin, along with some CSS to disable the animation effects and widen the cursor, might be what you are looking for.