why does my html link with css but not my img -


html:

<!doctype html> <html> <head>     <title>example domain</title>     <link rel="stylesheet" type="text/css" href="stylesheet.css" />     <meta charset="utf-8" />     <meta http-equiv="content-type" content="text/html; charset=utf-8" />     <meta name="viewport" content="width=device-width, initial-scale=1" />  </head>  <body> <h1>hello world!</h1> <h2>a few facts world live in</h2> <img src="http://upload.wikimedia.org/wikipedia/commons/thumb/9/97/the_earth_seen_from_apollo_17.jpg/640px-the_earth_seen_from_apollo_17.jpg" /> </body> </html>

css:

img {     width: 300; }  h1 {     font-family: georgia;     background-color: red; }

i have saved html , css in same folder. css file named stylesheet.css.

i able edit not through css file means css file , html linked somehow can't seem edit images. me!

the issue units. 300 of what? need add % or px or em.

img{   width:300px; }

fiddle 300px https://jsfiddle.net/jl7lqfv8/


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