Custom css styling for input type checkbox

customCheckbox.css

input[type='checkbox'] {
    outline: none !important;
    padding: 0;
    margin: 4px 0 0;
    line-height: normal;
    border: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
  }
  input[type='checkbox']:after {
    content: '';
    display: block;
    width: 15px;
    height: 15px;
    margin-top: -2px;
    margin-right: 5px;
    border: solid 1px #1da1f2;
    border-radius: 2px;
    -webkit-transition: 240ms;
    -o-transition: 240ms;
    transition: 240ms;
    box-sizing: border-box;
  }
  input[type='checkbox']:checked:after {
    content: '';
    border-color: #1da1f2;
    background-color: #1da1f2;
  }
  input[type='checkbox']:checked:before {
    content: '';
    position: absolute;
    margin-top: 2px;
    margin-left: 5px;
    display: table;
    width: 3px;
    height: 6px;
    border: 2px solid #fff;
    border-top-width: 0;
    border-left-width: 0;
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
  }