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  1. I've been experimenting with various models for edge detection in an image. Everything I've tried reduces the image to grayscale. How do I perform edge detection with an SVG Sharpen Filter and preserve the image's underlying color? Here's a sample of the effect I'm looking for: Thank you very much!
  2. Hi everyone, can anyone tell me whats wrong in the upper item on http://masterclassofindigo.art/udstillinger/udstillinger.html I would like it to display the text (link) in white like the lower item, and I am not able to figure out what is wrong. Kind regards Anders
  3. In comparing three browsers (Safari 12.1.1, Chrome 75.0.3770, and FireFox 67.0.2) accessing the same page I am noticing that the colors are not rendering uniformly. Any suggestions? html{ /* Permalink - use to edit and share this gradient: https://colorzilla.com/gradient-editor/#3949ab+25,05336b+100 */ background: #05336B; /* Old browsers */ background: -moz-radial-gradient(center, ellipse cover, #05336B 100%, #3949ab 25%); /* FF3.6-15 */ background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(100%,#05336b), color-stop(25%,#3949ab)); /* Chrome4-9,Safa
  4. Luke Ottey

    HSL to RGB

    Would anybody happen to know the algorithm used to convert HSL color space to RGB color space as was done in the 'Color HSL' section of 'Color Tutorial'? The link to this is: https://www.w3schools.com/colors/colors_hsl.asp
  5. BACKGROUND: Please compare the Select Language <select> element option menu under the headings Free Webinar and Newsletter/Subscribe found in the navigation bar on the Grammar Captive main page. Therein lies the heart of the following question. QUESTION: How does one set the background and text colors of the <optgroup> element so that they appear properly in Firefox? Neither optgroup { background: black; color: white; } nor optgroup { background-color: black; color: white; } appear to work. Roddy
  6. Hello, Does anyone know how to change the color of just the First Half of this Range Slider Bar? Here is the link to the example on W3: https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_js_rangeslider_round Thank you.
  7. W3 page on Color Standards X11 shows a 1-99 breakdown that I am familiar with over at Xxxxx (name redacted as advertising not welcomed). Namely, every Primary color can be applied using a fixed "primary" Hexadecimal stepping system. That system counts up using "primary" increments. Those increments diversify without color names. https://www.w3schools.com/colors/colors_x11.asp The W3 Schools page uses primary increments, but only for grey-scale. Here are the primary units for all colors. 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF X11 leans on photographic deployment of oi
  8. Dear potential helpers, I try to darken the foreground of my website using a background-color. I created a div which wraps all my other HTML stuff, applied position: relative; to it and a very great z-Index of 999. All my other elements have a z-index of 100 or lower. Why isn't my div not shown in front of the other stuff? In case the background-color of my div foreground is only shown behind all the other elements inside it. Here is my HTML: <html> <body> <div id="foreground"> <!-- All my other HTML stuff having relative positi
  9. iwato

    Page Gradient Text

    BACKGROUND: I like gradients because they are both colorfully attractive and easy on the eyes. They are also suggestive of binary thought and all that lies between the two polar extremes of 1 and 0. For these reasons I often employ gradients as the background colors of my <div> elements. Background gradients suffer from an important weakness, however: monochromic text is easy to read at one end of the gradient, but difficult to read at the other. QUESTION: Does anyone know of a way to cause text to change color as it is displayed across the width and height of the element that
  10. I found this collapsible menu: http://codepen.io/joaorafaelm/pen/pbjfi I want to change the color of the 3 icon bars of the button but i'm not able to do it, i just want them white. I tried this and only changed the third bar: label:before{ background:#fff; }
  11. I am developing a survey in a platform called Qualtrics. Qualtrics allows you to use what they call "embedded data" to "pipe text" into the survey in order to customize aspects of your survey itself. For example, if I want to insert the name of a school or person into a question I would use piped text which allows the customization to vary from person to person. It is a similar process to what would happen in a mail merged document that allowed someone to insert the name of a person to give the appearance of personalization. As part of the survey I am designing I have figured out h
  12. In the W3Schools tutorials on web color, a few different representations of color are presented. Examples: red-green-blue, hue-saturation-lightness, hue-whiteness-brightness, cyan-magenta-yellow-black, and a few different color-naming standards. A new color-space standard has been created and adopted: "Rec. 2020"; it provides a much larger color space than what most computer monitors can display (the sRGB color space). Eventually, computer monitors that support the new Rec. 2020 color space should become available. When the Rec. 2020 monitors become available (a few already are!), will
  13. I'm trying to change the text color scheme of the following, plus i would also like to bold. Web page displays (just text) but only (Update cart) is linked: Update cart or This is the code for above: <input type="submit" id="update-cart" name="update" value="{{ 'cart.general.update' | t }}"> "cart": { "general": { "title": "Cart", "update": "Update cart", "or": "or", "checkout": "Check out", The "Check out" is a Button (I didn't include code, because I didn't want to change it) I'm not sure what tag(s) I should use, I've tried <h3>,
  14. Hi, The website I am currently working on is this: annascherman.com I have set up the image gallery to be an un-ordered list so that I could achieve the irregular grid. I would love for the images to have a slight dark tint on top of them which goes away when you hover over an image (see example here: http://www.wallpaper.com/design/wallpaper-power-200) but for some reason, whenever I add a hover pseudo-element, I get a black background behind the image (I know this because it is also appearing to the right of the image, which I assume has to do with how I set things up as an un-orde
  15. Hi, Is there any way of changing the background colour in the TryIt editor? Mine is displaying as a very light grey on a white background which I find very difficult to read so I am constantly having to select the text so I can see it. Using firefox with kubuntu if that is of any relevance. Thanks in advance for any advice. E.
  16. Hey, so I have a question regarding my previous post. I am trying to randomly change the color of a div just by ppressing it. Here is my code to do so: My html: <button onclick="changeShirtColorRandom()">Change Shirt Color Random</button> My javascript: function color(color){ this.color = color;}//*All colorsvar red = new color("red");var blue = new color("blue");var green = new color("green");var purple = new color("purple");var yellow= new color("yellow");var black = new color("black");//*Array of colorsvar colors = [red, blue, green, purple, yellow, black]; //*
  17. Why if my <h1> is on a div, and I put on that div custom color ,<h1> have the default color ,and the rest of things for example <p> have the custom color
  18. hi, i hope im posting this in the correct place, i dont know html very well, what im trying to learn is how to create a background box around the title that stretches to the size of the title and is got only a couple of pixels bigger asper example in the picture enclosed. im really sorry if this is not explained properly but i dont know the technical terms. I want to do this in html as my wordpress blog lets me create a text box with custom html without the need to change the css file. many thanks in advance. kind regards Jorge
  19. Hello! i'd like to ask about this script function farba(newcol) { this.style.color = newcol;}function ahoj() { var sup = document.getElementById('aaa'); farba.call(sup,'blue'); if(sup.style.color == "blue"){sup.style.color="red"}else{sup.style.color="blue"} what should i change there for it , to work please?
  20. Hey. I am a beginner in html+css, and so far I have been able to solve everything out with google, but this is where it all stopped. I would like to make a solid color background with three icons on it(they are connections). When you hover the first icon, background color changes to yellow. When you hover second one, background color goes to red etc... what is the best solution for this, considering I would like to make a translation soft (meaning from dark gray to yellow in 0.5second, not instantly). Is that achievable with css or is that something where js comes in? The same goes wi
  21. waay2kool

    Table row colors

    Hi, I have created a table where each row is an alternating color green then cream then green etc. My html looks like: <table border="2" cellspacing="2" cellpadding="2" width="90%"><tr bgcolor="pms3275"><td width="25%"><font color="white">PRODUCT NUMBER</font></td><td width="20%"><font color="white">DESCRIPTION</font></td><td width="5%"><font color="white">DURO METER</font></td><td width="25%"><font color="white">SIZE</font></td><td width="5%"><font color="white">UNIT
  22. How to change only part of the font to a different color in a navigation link? See my website; www.cleareyesight-batesmethod.info On the left < is the navigation. I want the top words in each pages navigation to be in green and the rest of the text to stay navy blue. Example, in the home page, top navigation; I want NATURAL EYESIGHT IMPROVEMENT to be green. The rest of the text under it to stay navy. When I try to change the color it does not work and it also causes spaces between the 2 different colored text. How to do this? Maybe in html? Thanks,
  23. I have a page of 100 links, that looks like this:<br>[~Most-Used]<a href="www.hotmail.com/?">hotmail.com</a><br>[~Most-Used]<a href="http://alternativeto.net/">AlternativeToSoftwares</a><br>[~Most-Used]<a href="http://jsdo.it/vmars316/asdf/edit">jsdo.it javascript</a><br>[~Most-Used]<a href="http://www.portablefreeware.com/?">portablefreeware.com/</a><br>[Arduino]<a href="http://arduino.cc/forum/index.php#2">~arduino.cc/forum</a><br>[Arduino]<a href="http://arduino.cc/playground/">~arduino.cc/
  24. Hello once again, i will do this one short, since i feel stupid asking about it, but its a must since i cannot remember, and might be a rookie question -.-'... anyhow, here is my css: .chat_div_bottom_global_friend_list_button a:hover { text-decoration:none; color:#CDCDCD; background-color:#900; } .chat_div_bottom_global_friend_list_button a:link,a:visited,a:active { text-decoration:none; color:#CDCDCD; } here is my html: <span class='chat_div_bottom_global_chat_rooms_button'> Chat Room (Public)</span> <span class='chat_div_bottom_global_friend_list_button
  25. Hi, im having a little problem with a css menu bar displaying correctly on internet explorer but on firefox not showing it correctly. the problem is that the color I set on the css code is a red one, but firefox shows a blue color. I tried with other browsers to see if there was a problem with the code but for chrome,safari an ie the color shows correctly, having only firefox with the bad color displayed. Here is the code of the menu bar on the css: #menu {list-style:none;width:1160px;margin:30px auto 0px auto;height:43px;padding:0px 20px 0px 20px;/* Rounded Corners */ -moz-border-radius: 1p
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