Generated by SassMeister.com.

SassMeister-input-HTML.html

 <!--<div class="onoffswitch">
  <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" id="myonoffswitch" checked>
   <label class="onoffswitch-label" for="myonoffswitch">
    <span class="onoffswitch-inner"></span>
    <span class="onoffswitch-switch"></span>
  </label>
   
</div> 
-->
 <div class="toggle">
   <!--  <input type="checkbox" name="toggleswitch" class="toggle__switch" checked>-->
   <label class="toggle__label" for="toggleswitch">
    <!--<span class="toggle__state">On</span>
    <span class="toggle__state">Off</span>-->
  
  </label>
</div> 

SassMeister-input.scss

// ----
// libsass (v3.1.0)
// ----

body {
  background: #f3f4f4;

}

.toggle {
  margin: 50px auto ;
  background-color: #fff;
  width: 100px;
  overflow: hidden;

}

.toggle__label {
  text-transform: uppercase;
  overflow: hidden;
  width: 200px;
  height: 40px;
  display: block;
  position: relative;
  
  &:before {
    content: 'On';
    width: 50px;
    height: 40px;
    background: #b3e196;
    position: absolute;
    vertical-align: middle;
    z-index:0;
    line-height: 2.3;
    text-align: center;
    color: #fff;
  }

}

.toggle__state {
  padding: 10px;
  z-index: 200;
  
  &:first-child {
    color: white;
  }
  
  &:last-child {
    float: right;
    color: #999999;
  }
}

SassMeister-output.css

body {
  background: #f3f4f4; }

.toggle {
  margin: 50px auto;
  background-color: #fff;
  width: 100px;
  overflow: hidden; }

.toggle__label {
  text-transform: uppercase;
  overflow: hidden;
  width: 200px;
  height: 40px;
  display: block;
  position: relative; }
  .toggle__label:before {
    content: 'On';
    width: 50px;
    height: 40px;
    background: #b3e196;
    position: absolute;
    vertical-align: middle;
    z-index: 0;
    line-height: 2.3;
    text-align: center;
    color: #fff; }

.toggle__state {
  padding: 10px;
  z-index: 200; }
  .toggle__state:first-child {
    color: white; }
  .toggle__state:last-child {
    float: right;
    color: #999999; }

SassMeister-rendered.html

 <!--<div class="onoffswitch">
  <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" id="myonoffswitch" checked>
   <label class="onoffswitch-label" for="myonoffswitch">
    <span class="onoffswitch-inner"></span>
    <span class="onoffswitch-switch"></span>
  </label>
   
</div> 
-->
 <div class="toggle">
   <!--  <input type="checkbox" name="toggleswitch" class="toggle__switch" checked>-->
   <label class="toggle__label" for="toggleswitch">
    <!--<span class="toggle__state">On</span>
    <span class="toggle__state">Off</span>-->
  
  </label>
</div>