.h2-list {
  color:#002C50;
  font-weight:bold;
}
.h2-list:before {
    content: '';
    display: inline-block;
    margin-right: 0.3em;
    margin-bottom: 0.3em;
    width: 2em;
    height: 2em;
    background: url(https://img21.shop-pro.jp/PA01400/144/etc/logo-blue.png) no-repeat;
    background-size: contain;
    vertical-align: middle;
}