*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #6843d1;
}

.container{
    position: relative;
}
.container .navigation{
    position: relative;
    width: 80px;
    height: 420px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: 0.5s;
}
.container .navigation.active{
    width: 300px;
}
.container .navigation ul{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}
.container .navigation ul li{
    position: relative;
    list-style: none;
    width: 100%;
}
.container .navigation ul li:hover{
    background: #efefef;
}
.container .navigation ul li a{
    position: relative;
    display: block;
    width: 100%;
    display: flex;
    text-decoration: none;
    color: #6843cf;
    font-weight: 500; 
}

.container .navigation ul li a .icon{
    position: relative;
    display: block;
    min-width: 80px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 24px;
}



.container .navigation ul li a .title{
    position: relative;
    display: block;
    height: 60px;
    line-height: 60px;
    white-space: nowrap;
}
.toggle{
    position: absolute;
    top: calc(50% - 20px);
    right: -20px;
    width: 40px;
    height: 40px;
    background: #f5f5f5;
    cursor: pointer;
    border: 5px solid #6843d1;
    border-radius: 50%;
}

.toggle::before{
    content: ">";
    position: absolute;
    width: 100%;
    height: 100%;
    line-height: 30px;
    text-align: center;
    font-weight: 800;
    font-size: 16px;
    color: #6843d1;
}

.toggle.active::before{
    content: "<";
    position: absolute;
    width: 100%;
    height: 100%;
    line-height: 30px;
    text-align: center;
    font-weight: 800;
    font-size: 16px;
    color: #6843d1;
}