console 命令行工具 X clear

console

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div class="btn">
    <div class="inner"></div>
    <div class="inner"></div>
    <div class="inner"></div>
</div>
</body>
</html>

.btn {
        width: 28px;
        height: 22px;
        display: flex;
        flex-flow: column;
        justify-content: space-between;
    }
.btn .inner {
    width: 100%;
    height: 2px;
    background-color: #000000;
    transform-origin: left center;
    transition: all .4s;
}

.btn:hover .inner:nth-child(1) {
    transform: rotateZ(45deg);
}

.btn:hover .inner:nth-child(3) {
    transform: rotateZ(-45deg);
}

.btn:hover .inner:nth-child(2) {
    opacity: 0;
}