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Diffstat (limited to 'devtools/docs/user/rulers/index.rst')
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1 files changed, 28 insertions, 0 deletions
diff --git a/devtools/docs/user/rulers/index.rst b/devtools/docs/user/rulers/index.rst new file mode 100644 index 0000000000..4f4408cb18 --- /dev/null +++ b/devtools/docs/user/rulers/index.rst @@ -0,0 +1,28 @@ +====== +Rulers +====== + +You can overlay horizontal and vertical rulers on a web page: + +.. image:: viewport_rulers.png + :class: center + +The units are in pixels. + +The dimensions of the viewport are displayed near the top-right corner of the viewport. + +To be able to toggle rulers for a page, you first need to enable the button by going to the settings page for the Developer Tools and checking "Toggle rulers for the page" under Available Toolbox Buttons. + +.. image:: settings_available_buttons.png + :class: center + +Once enabled, the "Toggle rulers for the page" button appears at the top right of the Toolbox, in the same place as the Settings/Options button. + +.. image:: ruler_toggle_button.png + :class: center + + +Behavior to keep in mind when using rulers: + +- The rulers command must be reapplied in **new tabs** and after **each page refresh.** +- The command isn't permanent. |