sci-pro/lib/src/checkbox/style/index.css

.sci-checkbox {
  align-items: center;
  width: 14px;
  cursor: pointer;
}
.sci-checkbox .sci-checkbox__input {
  display: inline-flex;
  align-items: center;
}
.sci-checkbox input {
  position: absolute;
  z-index: -1;
  width: 0;
  height: 0;
  margin: 0;
  outline: none;
  opacity: 0;
}
.sci-checkbox .sci-checkbox__inner {
  position: relative;
  box-sizing: border-box;
  display: inline-block;
  width: 14px;
  height: 14px;
  background: #fff;
  border: 1px solid #dcdfe6;
  border-radius: 2px;
}
.sci-checkbox .sci-checkbox__inner::after {
  position: absolute;
  top: 1px;
  left: 4px;
  box-sizing: content-box;
  width: 3px;
  height: 7px;
  content: '';
  border: 1px solid transparent;
  border-top: 0;
  border-left: 0;
  transition: transform 0.15s ease-in 0.05s;
  transform: rotate(45deg) scaleY(0);
  transform-origin: center;
}
.sci-checkbox.is-checked .sci-checkbox__inner {
  background-color: #409eff;
  border-color: #409eff;
}
.sci-checkbox.is-checked .sci-checkbox__inner::after {
  border-color: #fff;
  transform: rotate(45deg) scaleY(1);
}
.sci-checkbox.is-indeterminate .sci-checkbox__inner {
  background-color: #409eff;
  border-color: #409eff;
}
.sci-checkbox.is-indeterminate .sci-checkbox__inner::before {
  position: absolute;
  top: 5px;
  right: 0;
  left: 0;
  display: block;
  height: 2px;
  content: '';
  background-color: #fff;
  transform: scale(0.5);
}
.sci-checkbox .sci-chckbox-label {
  padding-left: 8px;
}