.ul-download{list-style: none;padding: 0;margin: 0;text-align: left;}
.ul-download > li{padding: 5px 0;}
.file-down{display: inline-block;position: relative;padding-left: 16px;font-weight: 500;font-size: 15px;line-height: 24px;color: #000e2d;text-decoration: none;background: url('/_res/unist/chemistry/img/content/icon_down.png') no-repeat top 6px left / 10px auto;transition: all 0.3s;}
.file-down:hover{text-decoration: underline;color: #004bae;}