mask - Is there an inverse to the CSS "Clip" property; hide the clipped area? -


the css clip syntax gets define rectangular area of larger image wish visible. there way specify inverse? specify rectangular area of image wish become invisible. punching rectangular hole through page see what's underneath?

reason (if have other ideas): want create 3 layer image in cms template. layer 1 (at bottom) background image. layer 2 sits on portion of layer 1 , rectangular screengrab image of a4 document. layer 3 (on top) transparent png (in centre , @ edges) adds border, drop shadow, doc type logo , page curl effect top right of layer 2 document.

layers 1 , 2 uploaded separately in cms , css should combine them layer 3 image create effect. problem page curl effect work, top right corner of layer 2 needs masked can see way through layer 3 layer 1. hoping clip property allow me specify small square in top right corner of layer 2 should invisible.

alternative: use graphics program combine layers 1 , 3 , leave transparent area layer 2. correct positioning place new combined image on top of layer 2 achieve same effect. however, hoping avoid graphics preparation because may create entire image way.

simple answer: css clip not work that.

i see 2 options:

  1. try fake 'hole' drawing layer3 layer1 background image. make transparent areas of layer3 filled layer1. can see solution in action here: http://cssfilter.saschaseewald.com/

  2. use hmtl canvas element , composite actions combine layers like. overview: http://www.html5canvastutorials.com/advanced/html5-canvas-global-composite-operations-tutorial/


Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());
Read more