<div class="cp_ipcheck">
	<ul>
		<li class="list_item">
		<label>
		<input type="checkbox" class="option-input06" checked />
		ネコ
		</label>
		</li>
		<li class="list_item">
		<label>
		<input type="checkbox" class="option-input06" />
		イヌ
		</label>
		</li>
		<li class="list_item">
		<label>
		<input type="checkbox" class="option-input06" />
		ウサギ
		</label>
		</li>
	</ul>
</div>

.cp_ipcheck {
	width: 90%;
	margin: 2em auto;
	text-align: left;
}
.cp_ipcheck ul {
	margin: 0.5rem 0.5rem 2rem 0.5rem;
	padding: 0.5rem 1rem;
	list-style: none;
	border: 1px solid #cccccc;
}
.cp_ipcheck .list_item {
	margin: 0 0 0.5rem 0;
	padding: 0;
}
.cp_ipcheck label {
	line-height: 135%;
	position: relative;
	margin: 0.5rem;
	padding-left: 1rem;
	cursor: pointer;
}
.cp_ipcheck .option-input06 {
	position: relative;
	top: -0.375rem;
	margin: 0 1rem 0 0;
	cursor: pointer;
	outline: none;
	-webkit-appearance: none;
}
.cp_ipcheck .option-input06:before, .option-input06:after {
	position: absolute;
	z-index: 1;
	top: -0.0625rem;
	left: -1rem;
	width: 1rem;
	height: 1rem;
	content: '';
	-webkit-transition: -webkit-transform 0.4s ease-in-out, border-top 0.4s ease-in-out, border-bottom 0.4s ease-in-out, border-left 0.1s 0.3s ease-in-out, border-right 0.1s 0.3s ease-in-out;
	        transition:         transform 0.4s ease-in-out, border-top 0.4s ease-in-out, border-bottom 0.4s ease-in-out, border-left 0.1s 0.3s ease-in-out, border-right 0.1s 0.3s ease-in-out;
	-webkit-transform: translateX(0) translateY(-0.5rem);
	        transform: translateX(0) translateY(-0.5rem);
	border: 2px solid #f2f2f2;
	border-top-style: none;
	border-right-style: none;
}
.cp_ipcheck .option-input06:after {
	z-index: 0;
	border: 2px solid #f2f2f2;
	border-bottom-style: none;
	border-left-style: none;
}
.cp_ipcheck .option-input06:checked:before {
	-webkit-transform: rotate(-45deg) translateX(0.25rem) translateY(-0.75rem);
	        transform: rotate(-45deg) translateX(0.25rem) translateY(-0.75rem);
	border-color: #e74c3c;
	border-left-style: none;
}
.cp_ipcheck .option-input06:checked:after {
	-webkit-transform: rotate(45deg) translateX(-0.25rem) translateY(0.25rem);
	        transform: rotate(45deg) translateX(-0.25rem) translateY(0.25rem);
	border-color: #e74c3c;
	border-right-style: none;
}