<div class="normal">正常模式</div>
<div class="box">优化后</div>
<div class="pesudo">双伪元素</div>

html,
body {
    width: 100%;
    height: 100%;
    display: flex;
    background: #bbb;
    overflow: hidden;
}

div {
    text-align: center;
    width: 100px;
    line-height: 100px;
    position: relative;
    display: inline-block;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
    margin: auto;
    cursor: pointer;
    transform: scale(1.5)
}

.normal:hover {
    transform: scale(1.75, 1.75);
    box-shadow: 0 16px 24px rgba(0, 0, 0, 0.7);
}

.box::after {
    content: "";
    border-radius: 5px;
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 16px 24px rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.box:hover {
    transform: scale(1.75, 1.75);
}

.box:hover::after {
    opacity: 1;
}

.pesudo {
    box-shadow: unset;
}

.pesudo::after {
    content: "";
    border-radius: 5px;
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 16px 24px rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.pesudo::before {
    content: "";
    border-radius: 5px;
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.5);
    transition: all 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.pesudo:hover {
    transform: scale(1.75, 1.75);
}

.pesudo:hover::before {
    opacity: 0;
}

.pesudo:hover::after {
    opacity: 1;
}