html - 将文本添加到 CSS 复选框开关

Question

我正在尝试仅使用 CSS 设计一个看起来像开关的复选框，并尽可能多地使用 em 以便它可以缩放到任何大小并且仍然看起来不错。

我有一个看起来非常敏锐，我只是希望能够在开关本身内添加“O​​N”/“OFF”之类的文本，这就是我需要你帮助的地方。

这是我目前所拥有的:

JSfiddle:https://jsfiddle.net/rcsngjhm/2/

.switch {
  display: table-cell;
  vertical-align: middle;
  padding: 10px;
}
.cmn-toggle {
  position: absolute;
  margin-left: -9999px;
  visibility: hidden;
}
.cmn-toggle + label {
  display: block;
  position: relative;
  cursor: pointer;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input.cmn-toggle-jwr + label {
  width: 3em;
  height: 1.5em;
  background-color: #dddddd;
  -webkit-border-radius: 1.5em;
  -moz-border-radius: 1.5em;
  -ms-border-radius: 1.5em;
  -o-border-radius: 1.5em;
  border-radius: 1.5em;
  overflow: hidden;
}
input.cmn-toggle-jwr + label:before,
input.cmn-toggle-jwr + label:after {
  display: block;
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  content: "";
}
input.cmn-toggle-jwr + label:before {
  right: 1px;
  background-color: #f1f1f1;
  -webkit-border-radius: 1.5em;
  -moz-border-radius: 1.5em;
  -ms-border-radius: 1.5em;
  -o-border-radius: 1.5em;
  border-radius: 1.5em;
  -webkit-transition: background 0.3s;
  -moz-transition: background 0.3s;
  -o-transition: background 0.3s;
  transition: background 0.3s;
}
input.cmn-toggle-jwr + label:after {
  width: 1.5em;
  width: calc(1.5em - 2px);
  background-color: #fff;
  -webkit-border-radius: 100%;
  -moz-border-radius: 100%;
  -ms-border-radius: 100%;
  -o-border-radius: 100%;
  border-radius: 100%;
  -webkit-box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  -moz-box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  -webkit-transition: margin 0.3s;
  -moz-transition: margin 0.3s;
  -o-transition: margin 0.3s;
  transition: margin 0.3s;
}
input.cmn-toggle-jwr:checked + label:before {
  background-color: #8ce196;
}
input.cmn-toggle-jwr:checked + label:after {
  margin-left: 1.5em;
}

<div class="switch">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-jwr" type="checkbox">
  <label for="cmn-toggle-1"></label>
</div>

此外，如果您发现任何我可以进一步清理它的方法，请告诉我。

Answer 1

我稍微修改了 CSS 以尝试将文本置于开关内。

根据您希望文本的大小，您可能需要调整字体大小、边距等。

See updated fiddle

.em1-0 {
  font-size: 1em;
}

.em4-0 {
  font-size: 4em;
}

.switch {
  display: table-cell;
  vertical-align: middle;
  padding: 10px;
}

.cmn-toggle {
  position: absolute;
  margin-left: -9999px;
  visibility: hidden;
}

.cmn-toggle + label {
  display: block;
  position: relative;
  cursor: pointer;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

input.cmn-toggle-jwr + label {
  width: 3em;
  height: 1.5em;
  background-color: #dddddd;
  -webkit-border-radius: 1.5em;
  -moz-border-radius: 1.5em;
  -ms-border-radius: 1.5em;
  -o-border-radius: 1.5em;
  border-radius: 1.5em;
  overflow: hidden;
}

input.cmn-toggle-jwr + label:before,
input.cmn-toggle-jwr + label:after {
  display: block;
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  content: "";
}

input.cmn-toggle-jwr + label:before {
  right: 1px;
  background-color: #f1f1f1;
  -webkit-border-radius: 1.5em;
  -moz-border-radius: 1.5em;
  -ms-border-radius: 1.5em;
  -o-border-radius: 1.5em;
  border-radius: 1.5em;
  -webkit-transition: background 0.3s;
  -moz-transition: background 0.3s;
  -o-transition: background 0.3s;
  transition: background 0.3s;
  /* added these four */
  font-size: 0.75em;
  content:"off";
  text-align: right;
  padding: 0.25em 0.35em;
}

input.cmn-toggle-jwr + label:after {
  width: 1.5em;
  width: calc(1.5em - 2px);
  background-color: #fff;
  -webkit-border-radius: 100%;
  -moz-border-radius: 100%;
  -ms-border-radius: 100%;
  -o-border-radius: 100%;
  border-radius: 100%;
  -webkit-box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  -moz-box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  box-shadow: 1px 0 3px rgba(0, 0, 0, 0.1);
  -webkit-transition: margin 0.3s;
  -moz-transition: margin 0.3s;
  -o-transition: margin 0.3s;
  transition: margin 0.3s;
}

input.cmn-toggle-jwr:checked + label:before {
  background-color: #8ce196;
  /* added these two */
  content: "on";
  text-align:left;
}

input.cmn-toggle-jwr:checked + label:after {
  margin-left: 1.5em;
}

<div class="switch em4-0">
  <input id="cmn-toggle-0" class="cmn-toggle cmn-toggle-jwr" type="checkbox">
  <label for="cmn-toggle-0"></label>
</div>

<br />

<div class="switch em1-0">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-jwr" type="checkbox">
  <label for="cmn-toggle-1">on</label>
</div>