.sidebar {
    display: flex;
    flex-direction: column;
    width: 200px;
    height: 100vh;
    align-items: center;
}


aside,header, nav, footer {
    border: 1px solid rgb(181, 243, 181);
}

header {
 flex-grow: 0;
}

nav {
    flex-grow: 1;
}

footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-grow: 0;
}

a {
    text-decoration: none;
    color: #2b2b2b;
}

ul {
    /* list-style: none; */
    list-style-type: none;
    padding-inline-start: 0;

}

a:hover {
    color: #2b2bb2;
    transition: color 0.3s;

}

.img-placeholder {
    margin-top: 10px;
    background-color: pink;
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
}