css - How can I add a svg as content on :before pseudo element of an element? -


this question has answer here:

i trying use svg inside content of :before pseudo element.

for purpose, following question: is there way use svg content in pseudo element :before or :after cannot make work.

i have simple svg:

<svg height="100" width="100">   <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" /> </svg>

and here have tried:

example 1: inserting svg on content attribute

#square{     background-color: green;     width: 100px;     height: 100px;  }    #square:before{     display: block;     content: url("data:image/svg+xml;charset=utf-8,<svg height='100' width='100'><circle cx='50' cy='50' r='40' stroke='black' stroke-width='3' fill='red' /></svg>");     background-size: 28px 28px;     height: 28px;     width: 28px;  }
<div id="square"></div>

example 2: base64 encoding

#square{     background-color: green;     width: 100px;     height: 100px;  }    #square:before{     display: block;     content: url("data:image/svg+xml;base64,phn2zybozwlnahq9ijewmcigd2lkdgg9ijewmci+pgnpcmnszsbjed0intaiign5psi1mcigcj0indaiihn0cm9rzt0iymxhy2siihn0cm9rzs13awr0ad0imyigzmlsbd0icmvkiiavpjwvc3znpg==");     background-size: 28px 28px;     height: 28px;     width: 28px;  }
<div id="square"></div>

as can see, of examples not work sure missing something.

what doing wrong?

thanks in advance!

seems svg tag needed more attributes.

#square{     background-color: green;     width: 100px;     height: 100px;  }    #square:before{     display: block;     content: url("data:image/svg+xml;charset=utf-8, <svg xmlns='http://www.w3.org/2000/svg' version='1.1' height='100' width='100'><circle cx='50' cy='50' r='40' stroke='black' stroke-width='3' fill='red' /></svg>");     background-size: 28px 28px;     height: 28px;     width: 28px;  }
<div id="square"></div>


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