The checkbox in IE and chrome looks different.
Chrome
IE and Google Chrome works on different rendering engines (Layout engine ). webkit-box-shadow works in google chrome and latest Safari which uses webkit layout engine.
.squaredFour {
width: 18px;
position: relative;
margin: 18px auto;
}
.squaredFour label {
width: 18px;
height: 18px;
cursor: pointer;
position: absolute;
top: 0;
left: 0;
background: #fcfff4;
background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
border-radius: 4px;
box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0, 0, 0, 0.5);
}
.squaredFour label:after {
content: '';
width: 8px;
height: 4px;
position: absolute;
top: 4px;
left: 4px;
border: 3px solid #333;
border-top: none;
border-right: none;
background: transparent;
opacity: 0;
-webkit-transform: rotate(-45deg);
-ms-transform: rotate(-45deg);
transform: rotate(-45deg);
}
.squaredFour label:hover::after {
opacity: 0.5;
}
.squaredFour input[type=checkbox] {
visibility: hidden;
}
.squaredFour input[type=checkbox]:checked + label:after {
opacity: 1;
}
http://jsbin.com/saxunaqiqi/1/edit
This will work in Google Chrome and IE 10+ browsers.