* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html,
body {
    display: flex;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.container {
    display: flex;
    flex-flow: column nowrap;
    /* justify-content: center; */
    align-items: center;
    margin-top: 40px;
    width: 40%;
    min-width: 700px;
    min-height: 50%;
}
.main {
    display: flex;
    justify-content: space-around;
    margin: 40px 0 40px 0;
    width: 100%;
}
aside {
    display: flex;
    flex-flow: column nowrap;
    justify-content: space-around;
    height: 300px;
}
button {
    width: 200px;
    height: 36px;
    border: 2px solid #000;
    border-radius: 5px;
    background: #fff;
    color: #000;
    cursor: pointer;
}
.limiter {
    width: 2px;
    height: 100%;
    background: #000;
}
.list {
    width: 400px;
}
h2 {
    display: flex;
    justify-content: space-between;
}
footer {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}
.footer-hide {
    visibility: hidden;
}
.footer-show {
    visibility: visible;
}
.person {
    display: flex;
    justify-content: space-between;
    margin-top: 20px
}