這是代碼:.nav-item-style {margin: 3rem 3rem 3rem 3rem;}.nav-item-style:before, .nav-item-style:after {content: '';position: absolute;margin-top: 0;background: gray;width: 5rem;height: 1.5px;}.nav-item-style:before {margin-left: -4.9rem;}.nav-item-style:after {margin-left: 3.7rem;}這是效果圖(就是畫圈圈的部分去掉):
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