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HTML

            
              <div class="demo-cover">
 
<div class="nav-wrap">
    <nav class="nav" id="nav">
      <ul class="nav-list">
        <li>
          <div class="nav-list-front">
            <div class="nav-list-ttl">Category</div>
            <div class="nav-show-all" id="nav-show-all">
              <input type="radio" id="nav-input-all" name="nav-input" class="nav-input" data-sort-nav="show-all" checked>
              <label for="nav-input-all" id="show-all" class="nav-child-inner">
                全て見る</span></div>
              </label>
            </div>
          </div>
          <ul class="nav-child">
            <li>
              <input type="radio" id="nav-input-fruits" name="nav-input" class="nav-input" data-sort-nav="fruits">
              <label for="nav-input-fruits" id="fruits" class="nav-child-inner">
                <div class="nav-txt">くだもの</div>
              </label>
            </li>
            <li>
              <input type="radio" id="nav-input-vegetables" name="nav-input" class="nav-input" data-sort-nav="vegetables">
              <label for="nav-input-vegetables" id="vegetables" class="nav-child-inner">
                <div class="nav-txt">野菜</div>
              </label>
            </li>
            <li>
              <input type="radio" id="nav-input-meat" name="nav-input" class="nav-input" data-sort-nav="meat">
              <label for="nav-input-meat" id="meat" class="nav-child-inner">
                <div class="nav-txt">肉</div>
              </label>
            </li>
            <li>
              <input type="radio" id="nav-input-fish" name="nav-input" class="nav-input" data-sort-nav="fish">
              <label for="nav-input-fish" id="fish" class="nav-child-inner">
                <div class="nav-txt">魚</div>
              </label>
            </li>
            <li>
              <input type="radio" id="nav-input-dairy-products" name="nav-input" class="nav-input" data-sort-nav="dairy-products">
              <label for="nav-input-dairy-products" id="cereals" class="nav-child-inner">
                <div class="nav-txt">乳製品</div>
              </label>
            </li>
          </ul>
        </li>
      </ul>
    </nav>
    <div class="sort-block">
     <div class="sort-ttl" id="sort-ttl">Show all</div>
     <ul class="sort-list" id="sort-list">
      <li data-sort-item="fruits" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>りんご</p>
          </div>
          <div class="sort-list-category">
            <span>くだもの</span>
          </div>
        </div>
      </li>
      <li data-sort-item="fish" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>アジ</p>
          </div>
          <div class="sort-list-category">
            <span>魚</span>
          </div>
        </div>
      </li>
      <li data-sort-item="fruits,vegetables" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>唐辛子</p>
          </div>
          <div class="sort-list-category">
            <span>くだもの</span>
            <span>野菜</span>
          </div>
        </div>
      </li>
      <li data-sort-item="meat" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>豚肉</p>
          </div>
          <div class="sort-list-category">
            <span>肉</span>
          </div>
        </div>
      </li>
      <li data-sort-item="fruits,vegetables" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>なす</p>
          </div>
          <div class="sort-list-category">
            <span>くだもの</span>
            <span>野菜</span>
          </div>
        </div>
      </li>
      <li data-sort-item="fish" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>ブリ</p>
          </div>
          <div class="sort-list-category">
            <span>魚</span>
          </div>
        </div>
      </li>
       <li data-sort-item="fruits" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>いちご</p>
          </div>
          <div class="sort-list-category">
            <span>くだもの</span>
          </div>
        </div>
      </li>
      <li data-sort-item="vegetables" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>すいか</p>
          </div>
          <div class="sort-list-category">
            <span>野菜</span>
          </div>
        </div>
      </li>
      <li data-sort-item="meat" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>鶏肉</p>
          </div>
          <div class="sort-list-category">
            <span>肉</span>
          </div>
        </div>
      </li>
      <li data-sort-item="vegetables" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>ほうれん草</p>
          </div>
          <div class="sort-list-category">
            <span>野菜</span>
          </div>
        </div>
      </li>
      <li data-sort-item="fish" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>まぐろ</p>
          </div>
          <div class="sort-list-category">
            <span>魚</span>
          </div>
        </div>
      </li>
      <li data-sort-item="dairy-products" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>ヨーグルト</p>
          </div>
          <div class="sort-list-category">
            <span>乳製品</span>
          </div>
        </div>
      </li>
      <li data-sort-item="meat" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>ベーコン</p>
          </div>
          <div class="sort-list-category">
            <span>肉</span>
          </div>
        </div>
      </li>
      <li data-sort-item="dairy-products" class="is-selected">
        <div class="sort-list-inner">
          <div class="sort-list-ttl">
            <p>チーズ</p>
          </div>
          <div class="sort-list-category">
            <span>乳製品</span>
          </div>
        </div>
      </li>
    </ul>
  </div>
  </div>
!

CSS

            
              //common
html{
  font-size:62.5%;
}
body{
  font-size:1.4rem;
}
ul,li{
  list-style-type:none;
  padding-left:0;
  margin-left:0;
}
.demo-cover{
  margin:0 auto;
  width:100%;
  max-width:800px;
}
//mixin
$color-bg:#f7f7f7;



//nav
.nav {
	padding: 25px 0px 15px;
	background: #fff;

}

.nav-cover {
	background: #fff;
	overflow: hidden;
	opacity: 1;
}

.nav-list-ttl {
	font-size: 1.5rem;
	font-weight: 500;
}

.nav-list {
	>li {
		margin-top: 25px;

		&:first-child {
			margin-top: 0;
		}
	}
}


.nav-child {
	display: flex;
	flex-wrap: wrap;
	margin-top: 10px;

	>li {
		width: 32%;
    margin-top:20px;
    margin-right:2%;
		text-align: center;
		display: flex;

		&:nth-child(3n) {
			margin-right:0;
		}
	}
}

.nav-icon {
	display: block;
	width: 100%;
	font-size: 4rem;
	color: #969696;
	transition: .3s;

	+.nav-txt {
		margin-top: 10px;

	}
}

.nav-txt {
	display: block;
	width: 100%;
	font-feature-settings: "palt";
	font-size: 1.2rem;
	transition: .3s;

	>span {
		display: inline-block;
		margin-right: 3px;
		width: 10px;
	}

}

.nav-child-inner {
	display: flex;
	flex-wrap: wrap;
  align-items:center;
	width: 100%;
	padding: 15px 10px;
	background: $color-bg;
	border-radius: 5px;
}

.nav-btn {
	display: none;
	position: absolute;
	right: 15px;
	top: 50%;
	transform: translateY(-50%);


	.icon-close {
		display: none;
		visibility: hidden;
		opacity: 0;
	}
}

.nav-list-front {
  display: flex;
	align-items: center;
	justify-content: space-between;
}

.nav-show-all {
	.nav-child-inner {
    text-align:center;
		font-size: 1.2rem;
		padding: 10px 20px;
		color: #636363;
    background: $color-bg;
		line-height: 1;
    box-sizing:border-box;
	}

	.nav-input {
		&:checked {
			+label {
				color: #fff;
			}
		}
	}
}


.sort-block{
  margin-top:60px;
}

.sort-ttl {
  font-size:1.8rem;
  font-weight:800;
		text-transform: lowercase;
		&:first-letter {
			text-transform: capitalize;
		}
}
//sort-list
.sort-list {
	margin-top: 30px;
	display: flex;
	flex-wrap: wrap;

	>li {
		width: 32%;
		min-height: 150px;
		margin-bottom: 24px;
		display: flex;
		background: #fff;
	}
}

.sort-list-cover {
	padding: 10px 0 15px;
	min-height: 190px;
}

.sort-list-head {
	padding: 0 10px;
}

.sort-list-inner {
	position: relative;
	width: 100%;
	height: 100%;
  border:1px solid #ddd;
  padding:10px;
  box-sizing:border-box;
}
.nav-input {
	display: none;

	&:checked {
		+label {
      background:#ddd;
			.nav-txt {
				color: #fff;
			}
		}
	}
}
.sort-list-ttl{
  font-size:1.6rem;
  text-align:center;
}
.sort-list-category{
  >span{
    display:inline-block;
    padding:5px 10px;
    border:1px solid #ddd;
    line-height:1;
    vertical-align:middle;
    border-radius:25px;
    box-sizing:border-box;
    +span{
      margin-left:5px;
    }
  }
}
//state

//sort-list
.sort-list {
	>li {
		display: none;
		animation: sort_clear .5s ease -.3s 1 normal;


		&.is-selected {
			display: flex;
      margin:0 .5% 1%;
			animation: sort_selected .5s ease -.1s 1 forwards;
		}
	}

}

@keyframes sort_clear {
	0% {
		opacity: 1;
		transform: scale(1);
	}

	99% {
		transform: scale(.7);
		opacity: 0;
	}

	100% {
		transform: scale(.7);
		opacity: 0;
	}
}

@keyframes sort_selected {
	0% {
		opacity: 0;
	}

	1% {
		opacity: 1;
		transform: scale(.7);

	}

	100% {
		transform: scale(1);
	}
}
!

JS

            
              (function () {

  // ソート処理
  let clickSort;
  let clickScroll;
  let allShow;
  let sortTtlChange;
  const sortTtlNameArrey = []; //  data-sort-navを入れる配列

  const navInput = document.getElementsByClassName('nav-input');
  const sortList = document.getElementById('sort-list');
  const sortListLi = sortList.getElementsByTagName('li');
  const sortTtl = document.getElementById('sort-ttl');

  for (var i = 0; i < navInput.length; i++) {
    //  data-sort-navを配列に入れる
    sortTtlNameArrey.push(navInput[i].getAttribute('data-sort-nav'));
    // console.log(sortTtlNameArrey);

    (function (n) {

      // #sort-ttlを変更
      sortTtlChange = function (selectName) {
        let selectSortTtlName;

        // 全て表示
        if (selectName === 'show-all') {
          selectSortTtlName = 'Show all';
        } else {
          // sortTtlNameArreyにあてはまるものを探す
          for (var i = 0; i < sortTtlNameArrey.length; i++) {
            if (sortTtlNameArrey[i] == selectName) {
              selectSortTtlName = sortTtlNameArrey[i].replace('-', ' '); // アンダースコアをスペースに
              break;
            }
          }
        }
        // console.log(sortTtlName)
        const sortTtlName = selectSortTtlName;
        sortTtl.innerHTML = sortTtlName;
      };

      // すべて表示
      allShow = function (e) {
        for (var i = 0; i < sortListLi.length; i++) {
          sortListLi[i].classList.add('is-selected');
        }

      };

      // しぼりこみ表示
      clickSort = function (e) {
        const dataSortNav = e.currentTarget.getAttribute('data-sort-nav');

        // dataSortNavと同じ値を持っているものにclassをつける
        for (var i = 0; i < sortListLi.length; i++) {
          (function (n) {
            const sortListLiDataSortItem = sortListLi[n].getAttribute('data-sort-item');
            const sortListLiDataSortItemArrey = sortListLiDataSortItem.split(',');
            // console.log(sortListLiDataSortItemArrey);
            for (var a = 0; a < sortListLiDataSortItemArrey.length; a++) {
              if (sortListLiDataSortItemArrey[a] === dataSortNav) {
                sortListLi[i].classList.add('is-selected');
                break;
              } else {
                sortListLi[i].classList.remove('is-selected');
              }
            }
          })(i);
        }
      };

      navInput[n].addEventListener('click', function (e) {
        // すべて表示
        if (e.currentTarget.getAttribute('data-sort-nav') === 'show-all') {
          allShow(e);
        } else {
          // 絞り込み
          for (var i = 0; i < navInput.length; i++) {
            navInput[i].classList.remove('is-checked');
          }
          e.currentTarget.classList.add('is-checked');
          clickSort(e);
        }
        sortTtlChange(e.currentTarget.getAttribute('data-sort-nav'));

      }, false);
    })(i);
  }

}());
!
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