Check out my custom checkbox on Fiddle: http://jsfiddle.net/V98W8/
The checkbox works perfectly in Chrome, but displays broken in Firefox and IE.
I've attempted to add custom prefixes and other solutions, but the issue persists.
#milestone-table input[type="checkbox"] {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
background-color: #fafafa;
border: 1px solid lightgrey;
border-radius: 26px;
-webkit-box-shadow: inset 0 0 0 1px lightgrey;
box-shadow: inset 0 0 0 1px lightgrey;
cursor: pointer;
height: 28px;
position: relative;
-webkit-transition: border .25s .15s, box-shadow .25s .3s, padding .25s;
-moz-transition: border .25s .15s, box-shadow .25s .3s, padding .25s;
-o-transition: border .25s .15s, box-shadow .25s .3s, padding .25s;
-ms-transition: border .25s .15s, box-shadow .25s .3s, padding .25s;
transition: border .25s .15s, box-shadow .25s .3s, padding .25s;
width: 54px;
vertical-align: top;
outline: none;
}
#milestone-table .controls input[type="checkbox"] {
margin-top: 10px;
}
#add-milestone {
position: relative;
top: 7px;
left: 90%;
}
#milestone-table {
margin-top: -20px;
}
#milestone-table input[type="checkbox"]:after {
background-color: white;
border: 1px solid lightgrey;
border-radius: 24px;
-webkit-box-shadow: inset 0 -3px 3px rgba(0, 0, 0, 0.025), 0 1px 4px rgba(0, 0, 0, 0.15), 0 4px 4px rgba(0, 0, 0, 0.1);
box-shadow: inset 0 -3px 3px rgba(0, 0, 0, 0.025), 0 1px 4px rgba(0, 0, 0, 0.15), 0 4px 4px rgba(0, 0, 0, 0.1);
content: '';
display: block;
height: 24px;
left: 0;
position: absolute;
right: 26px;
top: 0;
-webkit-transition: border .25s .15s, left .25s .1s, right .15s .175s;
-moz-transition: border .25s .15s, left .25s .1s, right .15s .175s;
-o-transition: border .25s .15s, left .25s .1s, right .15s .175s;
-ms-transition: border .25s .15s, left .25s .1s, right .15s .175s;
transition: border .25s .15s, left .25s .1s, right .15s .175s;
}
#milestone-table input[type="checkbox"]:checked {
border-color: #53d76a;
-webkit-box-shadow: inset 0 0 0 13px #53d76a;
box-shadow: inset 0 0 0 13px #53d76a;
padding-left: 18px;
-webkit-transition: border .25s, box-shadow .25s, padding .25s .15s;
-moz-transition: border .25s, box-shadow .25s, padding .25s .15s;
-o-transition: border .25s, box-shadow .25s, padding .25s .15s;
-ms-transition: border .25s, box-shadow .25s, padding .25s .15s;
transition: border .25s, box-shadow .25s, padding .25s .15s;
}
#milestone-table input[type="checkbox"]:checked:after {
border-color: #53d76a;
left: 26px;
right: 0;
-webkit-transition: border .25s, left .15s .25s, right .25s .175s;
-moz-transition: border .25s, left .15s .25s, right .25s .175s;
-o-transition: border .25s, left .15s .25s, right .25s .175s;
-ms-transition: border .25s, left .15s .25s, right .25s .175s;
transition: border .25s, left .15s .25s, right .25s .175s;
}