# Viewport

Examples of changing the size of your application's viewport in Cypress, for a full reference of commands, go to docs.cypress.io

#### cy.viewport()

To set the viewport size and dimension, use the `cy.viewport()` command.

    cy.get('#navbar').should('be.visible')
    cy.viewport(320, 480)

    // the navbar should have collapse since our screen is smaller
    cy.get('#navbar').should('not.be.visible')
    cy.get('.navbar-toggle').should('be.visible').click()
    cy.get('.nav').find('a').should('be.visible')

    // lets see what our app looks like on a super large screen
    cy.viewport(2999, 2999)

    // cy.viewport() accepts a set of preset sizes
    // to easily set the screen to a device's width and height

    // We added a cy.wait() between each viewport change so you can see
    // the change otherwise it is a little too fast to see :)

    cy.viewport('macbook-15')
    cy.wait(200)
    cy.viewport('macbook-13')
    cy.wait(200)
    cy.viewport('macbook-11')
    cy.wait(200)
    cy.viewport('ipad-2')
    cy.wait(200)
    cy.viewport('ipad-mini')
    cy.wait(200)
    cy.viewport('iphone-6+')
    cy.wait(200)
    cy.viewport('iphone-6')
    cy.wait(200)
    cy.viewport('iphone-5')
    cy.wait(200)
    cy.viewport('iphone-4')
    cy.wait(200)
    cy.viewport('iphone-3')
    cy.wait(200)

    // cy.viewport() accepts an orientation for all presets
    // the default orientation is 'portrait'
    cy.viewport('ipad-2', 'portrait')
    cy.wait(200)
    cy.viewport('iphone-4', 'landscape')
    cy.wait(200)

    // The viewport will be reset back to the default dimensions
    // in between tests (the  default can be set in cypress.config.js)