html {
    font-family: monospace;
}

body {
    max-width: 600px;
    margin: 0 auto;
    padding: 0;
}

header {
    text-align: center;
}

header > img {
    width: 150px;
}

nav > ul {
    padding-left: 0;
    text-align: center;
}

nav > ul > li {
    display: inline-block;
    padding: 10px 20px;
}

nav > ul > li:hover {
    color: grey;
}

main {
    border: solid 1px;
    height: 100%;
}

section {
    margin: 15px;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

a:hover {
    color: grey;
}

.selected-menu-item {
    border-bottom: solid black 1px;
}

.feed-read-all-form {
    display: inline; 
    float: right;
}

.title {
    font-size: 1.1rem;
}

.center {
    text-align: center;
}

.inline {
    display: inline;
}

.del-btn {
    color: red;
}