.leftSide{
    width: 96px;
    height: 100vh;
    position: sticky;
    border-right: 1px solid #F5F6FA;
    left: 0;
    top: 0;
    margin-left: -30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.leftSideLink{
    width: 56px;
    text-decoration: none;
    font-size: 12px;
    text-align: center;
    color: #AFB2B7;
    margin-bottom: 24px;
    position: relative;
    padding-top: 52px;
    transition: color 300ms linear;
}

.leftSideLink:hover,
.leftSideLinkActive{
    transition: color 300ms linear;
    color: #91CF4F;
}

.leftSideLink:last-child{
    margin-bottom: 0;
}

.leftSideLink img{
    display: block;
    width: 48px;
    height: 48px;
    margin: 0 auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.leftSideLinkActiveImage{
    display: block;
    width: 48px;
    height: 48px;
    margin: 0 auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    transition: opacity 300ms linear;
}


.leftSideLink:hover .leftSideLinkActiveImage,
.leftSideLinkActive .leftSideLinkActiveImage{
    opacity: 1;
    transition: opacity 300ms linear;
}