body {
    background-color: #404F5E;
    color: white;
    font-size: 15px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 50px;
}

.big-container, .main-container, .sidebar, .sidebar-right {
    border: 2px solid black;
    margin: 5px;
    padding: 5px;
    align-items: center;
    text-align: center;
    overflow: auto;
    flex-direction: column;
}

.big-container {
    background-color: rgba(0, 0, 0, 0.5);
    width: 1000px;
    height: auto;
}

.main-container {
    background-color: rgba(0, 0, 0, 0.5);
    width: 520px;
    height: auto;
    float: left;
}

.sidebar {
    background-color: rgba(0, 0, 0, 0.5);
    width: 200px;
    height: auto;
    float: left;
}

.sidebar-right {
    background-color: rgba(0, 0, 0, 0.5);
    width: 200px;
    height: auto;
    float: left;
}

.buttons {
    width: 185px;
    height: 30px;
    border: 1px solid black;
    border-radius: 5px;
    background-color: rgba(0, 0, 0, 0.5);
    color: black;
    margin: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.buttons:hover {
    background-color: rgba(0, 0, 0, 0.5);
    color: #290330;
}