Generated by SassMeister.com.

Checkbox with cool check.html

<div class="checkbox">
  <input id="check1" type="checkbox">
  <label for="check1"><span>Test</span></label>
</div>

SassMeister-input.scss

// ----
// Sass (v3.4.21)
// Compass (v1.0.3)
// ----

.checkbox {
  position: relative;
  height: 30px;
  margin-top: 20px;
  input {
    visibility: hidden;
    &:checked + label:before {
      content: "";
      height: 3px;
      width: 12px;
      background-color: green;
      position: absolute;
      left: 2px;
      top: 11px;
      border-radius: 5px;
      transform: rotate(40deg);
      z-index:2;
    }
    &:checked + label:after {
      content: "";
      height: 24px;
      width: 3px;
      background-color: green;
      border-radius: 15px;
      position: absolute;
      border: 2px solid #fff;
      right: -1px;
      top: -8px;
      transform: rotate(30deg);
    }
  }
  label {
    height: 20px;
    width: 20px;
    position: absolute;
    left: 0;
    border: 3px solid #bbb;
    line-height: 30px;
    span {
      position: relative;
      padding-left: 35px;
      vertical-align: top;
      line-height: 20px;
    }
  }
}

SassMeister-output.css

.checkbox {
  position: relative;
  height: 30px;
  margin-top: 20px;
}
.checkbox input {
  visibility: hidden;
}
.checkbox input:checked + label:before {
  content: "";
  height: 3px;
  width: 12px;
  background-color: green;
  position: absolute;
  left: 2px;
  top: 11px;
  border-radius: 5px;
  transform: rotate(40deg);
  z-index: 2;
}
.checkbox input:checked + label:after {
  content: "";
  height: 24px;
  width: 3px;
  background-color: green;
  border-radius: 15px;
  position: absolute;
  border: 2px solid #fff;
  right: -1px;
  top: -8px;
  transform: rotate(30deg);
}
.checkbox label {
  height: 20px;
  width: 20px;
  position: absolute;
  left: 0;
  border: 3px solid #bbb;
  line-height: 30px;
}
.checkbox label span {
  position: relative;
  padding-left: 35px;
  vertical-align: top;
  line-height: 20px;
}

SassMeister-rendered.html

<div class="checkbox">
  <input id="check1" type="checkbox">
  <label for="check1"><span>Test</span></label>
</div>