html - css how do I realize cut-out borders? -


i have page mockup.

enter image description here

how realize cut-out border on left?

thanks

there several possible solutions question:

  1. just use triangle graphic.
    easy, obvious answer. not looking for, though.

  2. use filled in square div, , rotate 45 degrees.
    works, overkill simple. plus rotation can bit painful in older versions of ie (it works, filter syntax horrible, , default rotation point different other browsers, can hairy right). effort simple effect this.

  3. use css triangular-borders hack make triangles.
    it's bit hacky, works well. read more here: http://jonrohan.me/guide/css/creating-triangles-in-css/

  4. use svg.
    svg xml-based vector graphics format. trivial create in svg. great solution, except ie8 , earlier don't support svg. fortunately though, support vml, competing format (ie9 supports svg, vml going die, need deal time being). solution use 1 of javascript libraries svg-vml conversion on fly. there's several of them - try 1 example: http://code.google.com/p/svg2vml/. or can use raphael library draw in either svg or vml using javascript.

which 1 of these solutions use you; depends on browsers want support, whether you're happy using javascript, whether want avoid adding unnecessary graphics, etc.

i suggest css triangular borders hack best solution time being. in future, svg better answer, fact ie8/7/6 don't support bit of killer.

the problem triangular borders hack doesn't work in 100% ie6 (see page linked above details on that), it's usable. , frankly, i'd drop support ie6 anyway.


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