14 border:
10px solid black;
15 background-color: rgba(
100,
100,
255,
0.8);
16 -webkit-box-sizing: border-box;
17 -webkit-box-shadow: black
0 4px
4px;
21 -webkit-mask-image: url(resources/alpha-gradient.png);
22 -webkit-mask-repeat: repeat;
23 -webkit-mask-size:
50px;
26 <p>Testing masks on compositing layers.
</p>
28 <div class=
"masked box"></div>
29 <div class=
"masked box"></div>
30 <div class=
"masked box"></div>