.logo-icon {
    height:75px;
    width:75px;
    border-radius:50%;
    background-color:lightgray;
    background-image: url(https://i.pinimg.com/originals/1e/9a/5d/1e9a5daa361c3bfd4c77efa61c67254b.jpg);
    background:cover;
}

.main-header{
    display:flex;
    align-items:center;
    justify-content: space-between;
}