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仿新浪下拉框练习

2021-06-18 12:04:42 作者：互联网

虽然有BUG，但是先这样吧

<style>
        ul {
            margin: 0;
            padding: 0;
            list-style-type: none;
        }
        
        a {
            position: relative;
            float: left;
            width: 100px;
            height: 40px;
            text-align: center;
            line-height: 40px;
            /* cursor: pointer; */
            direction: none;
            /* border-left: 1px solid rgb(168, 159, 159);
             */
        }
        
        a:hover {
            background: rgb(37, 37, 37);
            color: orange;
            opacity: 0.7;
            cursor: pointer;
        }
        
        a span {
            position: absolute;
            color: orange;
            font-weight: 1000;
            right: 11px;
            top: 1px;
            transform: rotate(-90deg);
        }
        
        a ul {
            position: absolute;
            left: 0;
            display: none;
            border-left: 1px solid orange;
            border-right: 1px solid orange;
        }
        
        a ul li {
            width: 100px;
            background-color: #fff;
            color: black;
            border-bottom: 1px solid orange;
        }
        
        a ul li:hover {
            background-color: rgb(241, 239, 67);
            color: black;
        }
    </style>
</head>

<body>
    <a>微博<span>＜</span>
        <ul>
            <li>私信</li>
            <li>评论</li>
            <li>@我</li>
        </ul>
    </a>
</body>
<script>
    var as = document.querySelectorAll('a');
    var ul = document.querySelector('ul');
    for (var i = 0; i < as.length; i++) {
        as[i].onmouseenter = function() {
            ul.style.display = 'block'
        }
    }
    for (var i = 0; i < as.length; i++) {
        as[i].onmouseleave = function() {
            ul.style.display = 'none'
        }
    }
</script>

标签：orange,color,练习,var,ul,1px,新浪,border,下拉框
来源： https://www.cnblogs.com/aimiao/p/14898936.html