@import url('https://fonts.googleapis.com/css2?family=Nanum+Gothic&display=swap');

* {
    box-sizing: border-box;
}

body {
    font-family: 'Nanum Gothic', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: rgb(228, 227, 227);
}

.container {
    display: flex;
    max-width: 100%;
    width: 800px;
    margin: 0 auto;
    padding: 20px;
}

aside {
    border-right: 1px solid black;
    max-width: 45%;
    width: 220px;
    margin-right: 10px;
    padding-right: 10px;
    padding-top: 10px;
}

.btn {
    cursor: pointer;
    width: 100%;
    display: block;
    margin-bottom: 20px;
    padding: 10px 10px;
    font-weight: bold;
    font-size: 14px;
    border-radius: 5px;
}

.btn:focus {
    outline: 0;
}

#filter.active {
    outline: 1px ridge blue;
}

main {
    flex: 1;
    padding : 10px 20px;
}

h2 {
    margin: 0 0 20px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid black;
    padding-bottom: 10px;
}

h3 {
    background-color: white;
    margin: 20px 5px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid black;
    padding: 10px 5px;
}

.person {
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    font-size: 20px;
}

p {
    text-align: center;
}

@media (max-width: 700px) {

    .container {
        display: block;
    }

    aside {
        border: 0;
        display: flex;
        justify-content: center;
        flex-flow: wrap;
        max-width: 100%;
        width: 100%;
        margin-right: 0;
    }
    .btn {
        width: 45%;
        margin-right: 10px; 
        font-size: 12px;
        padding: 5px;
    }
}