.header-a,
.header-a:link,
.header-a:visited {
    text-decoration: none;
    outline: none;
    border: none;
}

.header-ul,
.header-li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.header-navbar {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.header-ul {
    display: flex;
    align-items: flex-end;
}

.header-li {
    margin-left: 20px;
}

    .header-li:first-child {
        margin-right: 10px;
    }

.header-a {
    color: purple;
    font-weight: bold;
    font-size: 16px;
    transition: .3s ease-in;
}

.header-li:hover .header-a {
    color: rgb(170, 37, 82);
    font-size: 20px;
}

.container-class {
    position:relative;
    background-color: pink;
    border-radius: 25px;
    padding: 5px 50px;
    transition: .2s ease;
}

.container-class:hover {
    border-bottom: 5px solid purple;
}