效果展示

图标采用的是阿里云矢量图

HTML:

<div class="navigation">
        <div class="menuToggle"></div>
        <div class="menu">
            <ul>
                <li style="--i:0.1s;">
                    <a href="">
                        <ion-icon class="iconfont icon-shouye"></ion-icon>
                    </a>
                </li>
                <li style="--i:0.1s;">
                    <a href="">
                        <ion-icon class="iconfont icon-huiyuan"></ion-icon>
                    </a>
                </li>
                <li style="--i:0.1s;">
                    <a href="">
                        <ion-icon class="iconfont icon-xinxitougao"></ion-icon>
                    </a>
                </li>
                <li style="--i:0.1s;">
                    <a href="">
                        <ion-icon class="iconfont icon-xiaoxi"></ion-icon>
                    </a>
                </li>
                <li style="--i:0.1s;">
                    <a href="">
                        <ion-icon class="iconfont icon-gerenzhongxin"></ion-icon>
                    </a>
                </li>
            </ul>
        </div>
    </div>

css:

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(45deg, #ff216d, #2196f3);
}
.navigation{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.menuToggle{
    position: relative;
    width: 70px;
    height: 70px;
    background: #fff;
    border-radius: 70px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.15);
}
.menuToggle::before{
    content: '+';
    position: absolute;
    font-size: 3em;
    font-weight: 200;
    color: #ff216d;
    transition: 1.5s;
}


.menuToggle.active::before{
    transform: rotate(225deg);
}
.menu{
    position: absolute;
    width: 30px;
    height: 30px;
    background: #fff;
    border-radius: 70px;
    z-index: -1;
    transition: transform 0.5s, width 0.5s, height 0.5s;
    transition-delay: 1s, 0.5s, 0.5s;
    transition-timing-function: cubic-bezier(0.075, 0.82, 0.165, 1);
}
.menuToggle.active ~ .menu{
    width: 380px;
    height: 70px;
    z-index: 1;
    transform: translateY(-100px);
    transition-delay: 0s, 0.5s, 0.5s;
    box-shadow: 0 15px 25px rgba(0,0,0,0,0.1);
}
.menu::before{
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background: #fff;
    left: calc(50% - 8px);
    bottom: 4px;
    transform: rotate(45deg);
    border-radius: 2px;
    transition: 0.5s;
}
.menuToggle.active ~ .menu::before{
    transition-delay: 0.5s;
    bottom: -6px;
}
.menu ul{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
    gap: 40px;
}
.menu ul li{
    list-style: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-30px);
    transition: 0.25s;
    transition-delay: calc(0s + var(--i));
}
.menuToggle.active ~ .menu ul li{
    opacity: 1;
    visibility: visible;
    transform: translateY(0px);
    transition-delay: calc(0.75s + var(--i));
}
.menu ul li a{
    display: block;
    font-size: 2em;
    text-decoration: none;
    color: #555;
}
.menu ul li:hover a{
    color: #ff216d;
}
@font-face {
  font-family: "iconfont"; /* Project id 3666414 */
  /* Color fonts */
  src: 
       url('iconfont.woff2?t=1663853552126') format('woff2'),
       url('iconfont.woff?t=1663853552126') format('woff'),
       url('iconfont.ttf?t=1663853552126') format('truetype');
}

.iconfont {
  font-family: "iconfont" !important;
  font-size: 36px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.icon-huiyuan:before {
  content: "\e632";
}

.icon-shouye:before {
  content: "\e629";
}

.icon-xinxitougao:before {
  content: "\e6bc";
}

.icon-xiaoxi:before {
  content: "\f502";
}

.icon-gerenzhongxin:before {
  content: "\e6b0";
}

JavaScript：

<script>
        let menuToggle = document.querySelector('.menuToggle');
        menuToggle.onclick = function(){
            menuToggle.classList.toggle('active')
        }
    </script>