input{
    border: 1px solid #ccc;
    padding: 7px 0px;
    border-radius: 3px;
    padding-left:5px;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    -webkit-transition: border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;
    -o-transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
    transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s
}
input:focus{
        border-color: #66afe9;
        outline: 0;
        -webkit-box-shadow: inset 0 5px 5px rgba(0,0,0,.075),0 0 20px rgba(102, 203, 233, 0.651);
        box-shadow: inset 0 5px 5px rgba(0,0,0,.075),0 0 20px rgba(102,175,233,.6)
}
body{
    font-size: 18px;
    line-height: 20px;
}
label{
    margin:10px;
}
.a-radio{
    display: none;
}
.b-radio{
    display: inline-block;
    border:1px solid #ccc;
    width:16px;
    height: 16px;
    border-radius:2px;
    vertical-align: middle;
    margin-right: 5px;
    position: relative;
}
.b-radio:before{
    content: '';
    font-size: 0;
    width: 10px;
    height: 10px;
    background: rgba(143, 149, 238, 0.719);
    position: absolute;
    left:50%;
    top:50%;
    margin-left: -5px;
    margin-top: -5px;
    border-radius: 2px;
    display: none;
}
.a-radio:checked~.b-radio:before{
    display: block;
}
body {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    min-height: 100vh;

    
  }
  
  .radio {
    margin: 0.5rem;
  }
  .radio input[type="radio"] {
    position: absolute;
    opacity: 0;
  }
  .radio input[type="radio"] + .radio-label:before {
    content: '';
    background: #f4f4f4;
    border-radius: 100%;
    border: 1px solid #b4b4b4;
    display: inline-block;
    width: 1.4em;
    height: 1.4em;
    position: relative;
    top: -0.2em;
    margin-right: 1em;
    vertical-align: top;
    cursor: pointer;
    text-align: center;
    -webkit-transition: all 250ms ease;
    transition: all 250ms ease;
  }
  .radio input[type="radio"]:checked + .radio-label:before {
    background-color: #3197EE;
    box-shadow: inset 0 0 0 4px #f4f4f4;
  }
  .radio input[type="radio"]:focus + .radio-label:before {
    outline: none;
    border-color: #3197EE;
  }
  .radio input[type="radio"]:disabled + .radio-label:before {
    box-shadow: inset 0 0 0 4px #f4f4f4;
    border-color: #b4b4b4;
    background: #b4b4b4;
  }
  .radio input[type="radio"] + .radio-label:empty:before {
    margin-right: 0;
  }