style.css

@import url("https://use.typekit.net/sfm4zwf.css");
#site-name {
    font-family: rodchenko-cond, sans-serif;
    font-weight: 700;
    font-style: normal;
}

input[type="checkbox"][id^="myCheckbox"] {
  display: none;

  }
  
  label {
    position: relative;
    cursor: pointer;
    width: 100%;
    height: 100%;
    display: block;
  }
  
  label:before {
    background-color: white;
    color: white;
    content: " ";
    display: block;
    border-radius: 50%;
    border: 1px solid grey;
    position: absolute;
    top: -5px;
    left: -5px;
    width: 25px;
    height: 25px;
    text-align: center;
    line-height: 28px;
    transition-duration: 0.4s;
    transform: scale(0);
  }
  
  label img {
    transition-duration: 0.2s;
    transform-origin: 50% 50%;
  }
  
  :checked + label {
    border-color: #ddd;
  }

  :checked + label:before {
    content: "✓";
    background-color: #485fc7;
    transform: scale(1);
  }
  
  :checked + label img {
    transform: scale(0.9);
    /* box-shadow: 0 0 5px #333; */
    z-index: -1;
  }