label.button-toggle-wrap
  h1.my-text My life is beautiful, because...
  input(type="checkbox" class="toggler" data-toggle='button-toggle')
  .button-toggle
    .handle
      .bars

* {
  &, &:before, &:after {
      box-sizing: border-box;
  }
}

body {
  font-family: 'Montserrat', sans-serif;
  color: #888;
}

h1 {
  font-weight: 300;
}

.text-red {
  color: lighten(#a21, 30%);
}

.button-toggle-wrap {
  text-align: center;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.button-toggle {
  display: inline-block;
  background: lighten(#555, 40%);
  border-radius: 3px;
  height: 48px;
  padding: 4px;
  width: 101px;
  position: relative;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.22);
  
  .handle {
    position: absolute;
    left: 4px;
    right: auto;
    width: 40px;
    height: 40px;
    background: #fff;
    border-radius: 3px;
    transition: all 0.4s cubic-bezier(0.33, 1.6, 0.66, 1);
    box-shadow: 0 2px 5px rgba(0,0,0,0.22);
  }
}

.toggler {
  display: none;
  
  &:checked {
    & + .button-toggle {
      background: lighten(#a21, 30%);
      
      .handle {
        left: 57px;
      }
    }
  }
}

// non of use
$(function() {
  $("[data-toggle]").click(function() {
    var target = $(".my-text");
    if($(this).prop('checked')) {
      target.html('You are my life <span class="text-red"><3</span>');
    } else {
      target.html('My life is beautiful, because...');
    }
  })
})