<div class="cp_ipradio">
<input type="radio" name="cpipr03" id="a_rb1" />
<label for="a_rb1">ネコ</label>
<input type="radio" name="cpipr03" id="a_rb2" />
<label for="a_rb2">イヌ</label>
<input type="radio" name="cpipr03" id="a_rb3" />
<label for="a_rb3">ウサギ</label>
</div>
.cp_ipradio {
width: 90%;
margin: 2em auto;
text-align: left;
}
.cp_ipradio input[type='radio'] {
position: absolute;
z-index: -1;
opacity: 0;
}
.cp_ipradio label {
position: relative;
display: inline-block;
margin-right: 30px;
padding-right: 10px;
padding-left: 35px;
cursor: pointer;
}
.cp_ipradio label::before {
position: absolute;
z-index: -1;
top: 0;
left: 0;
display: block;
width: 24px;
height: 24px;
content: ' ';
border: 2px solid #da3c41;
border-radius: 4px;
}
.cp_ipradio input[type='radio'] + label::before {
border-radius: 18px;
}
.cp_ipradio input[type='radio']:checked + label {
padding-left: 10px;
color: #ffffff;
}
.cp_ipradio input[type='radio']:checked + label::before {
top: 0;
width: 100%;
height: 100%;
background: #da3c41;
}
/* Transition */
.cp_ipradio label, .cp_ipradio label::before {
-webkit-transition: 0.25s all ease;
transition: 0.25s all ease;
}