Untitled

dabblet.css

div {margin:1em;text-align:center;line-height:100px;}
.button {
    width: 100px; height: 100px;
    padding: 8px;
    border-radius: 100px;
    box-shadow: 0 0.8px 8px rgba(0,0,0,.3);
   background-image: radial-gradient(center,  #8CE2FB 0, #52D2F8  50px, white 52px , white );/* safari ? */
   background-image: radial-gradient(circle at center,  #8CE2FB 0, #52D2F8  52px, white 52px , white ); /* newest */

}
.bshad {
    width: 100px; height: 100px;
    padding: 8px;
    border-radius: 100px;
    box-shadow: 0 0.8px 8px rgba(0,0,0,.3), inset 0 0 1px 8px white, inset 0 0 0 200px #52D2F8 ;

}

dabblet.html

<div class="button">radial-gradient</div>
<div class="bshad">box-shadow</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}