iOS 7 style switch

iOS 7 switch imitation. Made it initially for new Pepyaka, didn’t use it eventually. Features:

  • no shitty scripts, pure CSS,
  • the most accurate copy of iOS7 switch behavior, includes :active state styles (haven’t seen those in any other implementation),
  • made with ems, sizes approprietaly to the font size,
  • keyboard accessible.

Fork me, baby

Markup

<label class="ios7-switch">
    <input type="checkbox" checked>
    <span></span>
</label>

or

<label class="ios7-switch">
    <input type="checkbox" checked>
    <span></span>
    Mah shitty option!
</label>

or something similar, you get the idea.

CSS

.ios7-switch {
    display: inline-block;
    position: relative;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    tap-highlight-color: transparent;
}

.ios7-switch input {
    opacity: 0;
    position: absolute;
}

.ios7-switch input + span {
    position: relative;
    display: inline-block;
    width: 1.65em;
    height: 1em;
    background: white;
    box-shadow: inset 0 0 0 0.0625em #e9e9e9;
    border-radius: 0.5em;
    vertical-align: -0.15em;
    transition: all 0.40s cubic-bezier(.17,.67,.43,.98);
}

.ios7-switch:active input + span,
.ios7-switch input + span:active {
    box-shadow: inset 0 0 0 0.73em #e9e9e9;
}

.ios7-switch input + span:after {
    position: absolute;
    display: block;
    content: '';
    width: 0.875em;
    height: 0.875em;
    border-radius: 0.4375em;
    top: 0.0625em;
    left: 0.0625em;
    background: white;
    box-shadow: inset 0 0 0 0.03em rgba(0,0,0,0.1),
                0 0 0.05em rgba(0,0,0,0.05),
                0 0.1em 0.2em rgba(0,0,0,0.2);
    transition: all 0.25s ease-out;
}

.ios7-switch:active input + span:after,
.ios7-switch input + span:active:after {
    width: 1.15em;
}

.ios7-switch input:checked + span {
    box-shadow: inset 0 0 0 0.73em #4cd964;
}

.ios7-switch input:checked + span:after {
    left: 0.7125em;
}

.ios7-switch:active input:checked + span:after,
.ios7-switch input:checked + span:active:after {
    left: 0.4375em;
}

/* accessibility styles */
.ios7-switch input:focus + span:after {
    box-shadow: inset 0 0 0 0.03em rgba(0,0,0,0.15),
                0 0 0.05em rgba(0,0,0,0.08),
                0 0.1em 0.2em rgba(0,0,0,0.3);
    background: #fff;
}

.ios7-switch input:focus + span {
    box-shadow: inset 0 0 0 0.0625em #dadada;
}

.ios7-switch input:focus:checked + span {
    box-shadow: inset 0 0 0 0.73em #33be4b;
}

/* reset accessibility style on hover */
.ios7-switch:hover input:focus + span:after {
    box-shadow: inset 0 0 0 0.03em rgba(0,0,0,0.1),
                0 0 0.05em rgba(0,0,0,0.05),
                0 0.1em 0.2em rgba(0,0,0,0.2);
    background: #fff;
}

.ios7-switch:hover input:focus + span {
    box-shadow: inset 0 0 0 0.0625em #e9e9e9;
}

.ios7-switch:hover input:focus:checked + span {
    box-shadow: inset 0 0 0 0.73em #4cd964;
}

Caveats

Doesn’t work in older browsers with no box-shadow support (IE8 and lower, Android 3.x and lower). It’s easy enough to make a fallback to regular checkboxes. For instance, using Modernizr test

Modernizr.addTest(
    'unprefixed-boxshadow',
    Modernizr.testProp('boxShadow', '1px 1px', true)
);

and modified stylesheet – ios7-switch.modernizr.css.

No longer relevant in 2020 :—)

Has some rounding error problems in some browsers at some font sizes. Tweak the font size a bit to get rid of those.

Related links

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