* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    cursor: default;
}
body {
    font-family: ms pgothic;
}
.container {
    border: 1px black solid;
    width: 750px;
    height: 247px;
    margin: 40 auto;
    display: flex;
}
aside {
    border-right: 1px black solid;
    width: 150px;
    position: relative;
}
aside h4 {
    position: absolute;
    top: 5px;
    left: 5px;
}
aside #banner {
    width: 100%;
    height: 130px;
    object-fit: cover;
    mask-image: linear-gradient(to bottom, black 0, transparent 100%);
    opacity: 0.7;
    pointer-events: none;
}
aside nav {
    margin-top: -30px;
    padding: 5px;
}
aside ul {
    list-style: none;
}

aside li:hover a {
    color: hotpink;
}
aside button {
    background: none;
    border: 2px green solid;
    border-radius: 3px;
    width: 100%;
    margin-top: 3px;
    transition: ease-in-out 0.3s;
}
aside button:hover {
    background-color: lightgreen;
    transition: ease-in-out 0.1s;
}

main {
    width: 600px;
    padding: 10px;
    overflow-y: auto;
}
main .note {
    background-color: rgba(0,0,255,0.2);
    border: 1px blue solid;
    padding: 5px;
    font-size: 80%;
}
main .grid {
    display: grid;
    grid-template-columns: auto auto auto auto auto;
    grid-gap: 5px;
}
main .item {
    width: 111.5px;
    text-align: center;
    font-size: 13px;
}
main .item img {
    width: 100%;
    margin-bottom: 3px;
}
main .no {
    filter: sepia() grayscale(0.7)hue-rotate(160deg);
    color: grey;
}

main .popup {
    opacity: 0;
    display: none;
}
main .item:hover .popup {
    background-color: black;
    border: 1px white solid;
    padding: 5px;
    color: white;
    overflow-y: auto;
    z-index: 1;
    position: absolute;
    top: 0;
    opacity: 1;
    display: block;
}
main .popup p {
    text-align: left;
    font-size: 13px;
}

#home p {
    margin-bottom: 5px;
    text-align: center;
}

::-webkit-scrollbar {
    width: 7px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background-color: darkgrey;
}
::-webkit-scrollbar-thumb:hover {
    background: lightgrey;
}