Not able to overwrite element style with CSS - styles

I've seen other posts on this, but can't figure out how to overwrite in my specific situation. I need to change the height here using only CSS:
Inspect CSS
Inspect Element

Related

Linking into SVG content: Is it possible to specify an id AND a viewBox in a single URL fragment?

I want to confirm my interpretation of the SVG spec:
You can refer to an ID of an SVG. e.g., MyDrawing.svg#MyView
You can refer to an SVG viewBox. e.g., MyDrawing.svg#svgView(viewBox(0,200,1000,1000))
(This is what I want to confirm) But you can't do both in the same url. These options are mutually exclusive.
Context: I have a desire to link to an id attribute nested inside an svg but I also want to dynamically specify the view box. Ideally, I wouldn't have to modify the SVG to do this, because I have to do it for a lot of files; when/if my designer makes a modification, I don't want to have to do all that work over again.

SVG <use> element transition not working

I'm trying to use CSS transisions with SVG <use> element.
The problem is that the transition works with the original element but not inside the element on adding/removing class through classList.
However when I disable the transform property in the browser tools, it works.
Can someone help with this?
The small element is the source element which works, The bigger one is using <use>
https://codepen.io/karanS/pen/GqVLGv

TinyMCE and SVG

I'm using the latest/current TinyMCE editor (<script type="text/javascript" src='https://cdn.tinymce.com/4/tinymce.min.js'></script>) and it doesn't seem capable of displaying <svg>. I have some HTML saved in a database which contains some <svg>. When loaded in TinyMCE, it doesn't display.
Is this a known issue (I've searched and haven't found much)? Any workarounds?

TinyMCE strips empty and invalid tags. You can solve it by
Adding '&nbsp' to each empty element:
svg.find('*').each(function() {
if (!$(this).html()) {
$(this).text(' ');
}
});
here svg is your jQuery wrapped svg element.
Extending the valid elements according to the svg element reference*
extended_valid_elements: "svg[*],defs[*],pattern[*],desc[*],metadata[*],g[*],mask[*],path[*],line[*],marker[*],rect[*],circle[*],ellipse[*],polygon[*],polyline[*],linearGradient[*],radialGradient[*],stop[*],image[*],view[*],text[*],textPath[*],title[*],tspan[*],glyph[*],symbol[*],switch[*],use[*]"
*Note I added only the elements relevant for my case.

I tried Koen's first suggestion and it worked for existing SVG content (I added this in the setup callback). However it still filtered the SVG tags out when pasting HTML into the source code editor and then confirming the dialog.
After digging a bit into TinyMCE's source code to see where those elements are actually removed (it's in the DomParser class) I found an undocumented editor setting for the Schema class that specifies tags that are allowed to be empty without being removed. The only annoying thing is that you can't use it to add to the existing list, you can only override it. So when setting it you have to list the tags it has in there by default as well. Use this in the settings that you provide to TinyMCE when initialising it:
// First the list of tags that it normally knows about by default:
non_empty_elements: "td,th,iframe,video,audio,object,script,pre,code,area,base,basefont,br,col,frame,hr,img,input,isindex,link,meta,param,embed,source,wbr,track"
// Now we add tags related to SVGs that it doesn't normally know about:
+ "svg,defs,pattern,desc,metadata,g,mask,path,line,marker,rect,circle,ellipse,polygon,polyline,linearGradient,radialGradient,stop,image,view,text,textPath,title,tspan,glyph,symbol,switch,use",
This way these SVG tags should never be filtered out because they are empty - as long as they are also valid in general, e.g. by setting the extended_valid_elements as Koen suggested above or by allowing all elements (not recommended as it leaves you vulnerable to XSS attacks):
extended_valid_elements: "*[*]"
Please note that this worked for my version 4.5.8 of TinyMCE. Since this setting is undocumented it might not work anymore in current or future versions. Also they might've adjusted the default list that I'm overriding here in later versions. Find nonEmptyElementsMap and shortEndedElementsMap in Schema.js in their source code to find the default list in your version (the two lists get combined) and note that in there the tags are separated by spaces but when you supply a list yourself the list is separated by commas (for whatever reason).

Seams to be TinyMCE that removes it because it is an empty tag: http://world.episerver.com/forum/developer-forum/-EPiServer-75-CMS/Thread-Container/2015/1/tinymce-and-svgs/
You might be able to use this inside the init:
extended_valid_elements : "svg[*]",
It works with other empty tags etc, but have never tried with SVG.
From the forum post I linked to:
ok,I did some debugging into TinyMCE and the problem seems to be that
the svg element is detected as being empty and therefor removed.
Unfortunatley there is no config way to change this behavior but there
are some workarounds.
Always have a name attibute for the svg element: <svg name="something"
Always have a data-mce attribute for the svg element: <svg data-mce-something="something"
Include some text content within the svg element: <svg> </svg> Using these techniques i could succesfully store
inline svg in an xhtml property

I made it work by adding all valid SVG elements to the extended_valid_elements property of the settings object while initializing TinyMCE, no other action was needed
For your convenience here's the full list of SVG elements I used
a[*],altGlyph[*],altGlyphDef[*],altGlyphItem[*],animate[*],animateMotion[*],animateTransform[*],circle[*],clipPath[*],color-profile[*],cursor[*],defs[*],desc[*],ellipse[*],feBlend[*],feColorMatrix[*],feComponentTransfer[*],feComposite[*],feConvolveMatrix[*],feDiffuseLighting[*],feDisplacementMap[*],feDistantLight[*],feFlood[*],feFuncA[*],feFuncB[*],feFuncG[*],feFuncR[*],feGaussianBlur[*],feImage[*],feMerge[*],feMergeNode[*],feMorphology[*],feOffset[*],fePointLight[*],feSpecularLighting[*],feSpotLight[*],feTile[*],feTurbulence[*],filter[*],font[*],font-face[*],font-face-format[*],font-face-name[*],font-face-src[*],font-face-uri[*],foreignObject[*],g[*],glyph[*],glyphRef[*],hkern[*],image[*],line[*],linearGradient[*],marker[*],mask[*],metadata[*],missing-glyph[*],mpath[*],path[*],pattern[*],polygon[*],polyline[*],radialGradient[*],rect[*],script[*],set[*],stop[*],style[*],svg[*],switch[*],symbol[*],text[*],textPath[*],title[*],tref[*],tspan[*],use[*],view[*],vkern[*],a[*],animate[*],animateMotion[*],animateTransform[*],circle[*],clipPath[*],defs[*],desc[*],discard[*],ellipse[*],feBlend[*],feColorMatrix[*],feComponentTransfer[*],feComposite[*],feConvolveMatrix[*],feDiffuseLighting[*],feDisplacementMap[*],feDistantLight[*],feDropShadow[*],feFlood[*],feFuncA[*],feFuncB[*],feFuncG[*],feFuncR[*],feGaussianBlur[*],feImage[*],feMerge[*],feMergeNode[*],feMorphology[*],feOffset[*],fePointLight[*],feSpecularLighting[*],feSpotLight[*],feTile[*],feTurbulence[*],filter[*],foreignObject[*],g[*],hatch[*],hatchpath[*],image[*],line[*],linearGradient[*],marker[*],mask[*],metadata[*],mpath[*],path[*],pattern[*],polygon[*],polyline[*],radialGradient[*],rect[*],script[*],set[*],stop[*],style[*],svg[*],switch[*],symbol[*],text[*],textPath[*],title[*],tspan[*],use[*],view[*],g[*],animate[*],animateColor[*],animateMotion[*],animateTransform[*],discard[*],mpath[*],set[*],circle[*],ellipse[*],line[*],polygon[*],polyline[*],rect[*],a[*],defs[*],g[*],marker[*],mask[*],missing-glyph[*],pattern[*],svg[*],switch[*],symbol[*],desc[*],metadata[*],title[*],feBlend[*],feColorMatrix[*],feComponentTransfer[*],feComposite[*],feConvolveMatrix[*],feDiffuseLighting[*],feDisplacementMap[*],feDropShadow[*],feFlood[*],feFuncA[*],feFuncB[*],feFuncG[*],feFuncR[*],feGaussianBlur[*],feImage[*],feMerge[*],feMergeNode[*],feMorphology[*],feOffset[*],feSpecularLighting[*],feTile[*],feTurbulence[*],font[*],font-face[*],font-face-format[*],font-face-name[*],font-face-src[*],font-face-uri[*],hkern[*],vkern[*],linearGradient[*],radialGradient[*],stop[*],circle[*],ellipse[*],image[*],line[*],path[*],polygon[*],polyline[*],rect[*],text[*],use[*],use[*],feDistantLight[*],fePointLight[*],feSpotLight[*],clipPath[*],defs[*],hatch[*],linearGradient[*],marker[*],mask[*],metadata[*],pattern[*],radialGradient[*],script[*],style[*],symbol[*],title[*],hatch[*],linearGradient[*],pattern[*],radialGradient[*],solidcolor[*],a[*],circle[*],ellipse[*],foreignObject[*],g[*],image[*],line[*],path[*],polygon[*],polyline[*],rect[*],svg[*],switch[*],symbol[*],text[*],textPath[*],tspan[*],use[*],g[*],circle[*],ellipse[*],line[*],path[*],polygon[*],polyline[*],rect[*],defs[*],g[*],svg[*],symbol[*],use[*],altGlyph[*],altGlyphDef[*],altGlyphItem[*],glyph[*],glyphRef[*],textPath[*],text[*],tref[*],tspan[*],altGlyph[*],textPath[*],tref[*],tspan[*],clipPath[*],cursor[*],filter[*],foreignObject[*],hatchpath[*],script[*],style[*],view[*],altGlyph[*],altGlyphDef[*],altGlyphItem[*],animateColor[*],cursor[*],font[*],font-face[*],font-face-format[*],font-face-name[*],font-face-src[*],font-face-uri[*],glyph[*],glyphRef[*],hkern[*],missing-glyph[*],tref[*],vkern[*]

SVG fill transition doesn't work when embeded by using <img> tag

I defined CSS transition rules in my svg. It's something like:
#mark #bg {
transition: fill 200ms;
fill: #245575;
}
#mark:hover #bg {
fill: #ff5c26;
}
When I drag it into browser's blank page and test it, the transition works fine. But if I embed the svg into my website using <img src="images/mark.svg" alt="">, the transition doesn't work.
Did I miss something?

Images either via <img> tags of via the CSS background-image image property cannot be interactive and have other restrictions in order to maintain user's privacy and security.
If you ask yourself "could I do this if the image was a .png or a .gif?" then you'll be on the right lines. Browsers have deliberately chosen to keep to the same mental model for SVG files so that the capability of images is easy to understand.
If you want transitions to work you'll need to use an <object> or <iframe> tag or embed the SVG inline in the html document.

how to get the css keys and values for any html tag

I would like to dump all css key/value pairs for an html tag.
In particular, I would like to learn the css properties for <audio> tag, so I can try to customize the look.
document.getElementById('myaudio').style returns a CSSStyleDeclaration object but length returns 0 and I cannot figure out to iterate over the key/value pairs.
Thank you

Try Firebug for firefox. It allows you to view the CSS and properties of any element on a webpage and allows in-page editing so you can customise it on the fly until you are happy without having to create hard and fast changes

You can't iterate over the keys in the style object. It's simply impossible.
The best answer is what Chris said. Use Firebug in Firefox, or similar tools in the other browsers, which can do the work for you and tell you exactly what CSS properties apply to the element.
(Make sure that you tell the tool to show you "user agent styles", not just styles you've added, so you can see what styles the browser applies automatically.)

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