16. A method for previewing a web page, comprising: receiving a web page previewing triggering instruction; sending a web page previewing request in accordance with the web page previewing triggering instruction to a middleware server to request to preview a web page link; receiving at least a part of a main document of the web page link typeset by the middleware server from the middleware server, wherein the typeset main document excludes an external CSS (Cascading Style Sheet) associated with the main document and includes an internal CSS written by the middleware server; capturing at least the part of the typeset main document; and scaling the captured typeset main document in accordance with a screen size of a mobile terminal to generate a preview image for the mobile terminal to display.
16. A method for previewing a web page, comprising: receiving a web page previewing triggering instruction; sending a web page previewing request in accordance with the web page previewing triggering instruction to a middleware server to request to preview a web page link; receiving at least a part of a main document of the web page link typeset by the middleware server from the middleware server, wherein the typeset main document excludes an external CSS (Cascading Style Sheet) associated with the main document and includes an internal CSS written by the middleware server; capturing at least the part of the typeset main document; and scaling the captured typeset main document in accordance with a screen size of a mobile terminal to generate a preview image for the mobile terminal to display. 17. The method of claim 16 , further comprising generating the web page previewing triggering instruction in accordance with a two-finger long press action on the web page link.