body{
    margin: 0;
    display: flex;
    justify-content: center;
	background-color: black;
}

.contents-wrapper{
    max-width: 1920px;
    width: 100%;
}

.topper {
    position: fixed;
    z-index: 100;
    max-width: 1920px;
    width: 100%;
    cursor: pointer;
}

.right {
    position: fixed;
    z-index: 100;
    bottom: 10px;
    right: 10px;
}

.footer_wrapper{
    width: 100%;
    max-width: 1920px;
    background-color: #282828;
    padding: 20px;
    color: white;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer_wrapper > div {
    margin-bottom: 5px;
 }

.flex {
    display: flex;
}

.justify-content_center{
    justify-content: center;
}

.justify-content_space-between{
    justify-content: space-between;
}

.flex-direction_column {
    flex-direction: column;
}

.flex-direction_row-reverse{
    flex-direction: row-reverse
}

.align-items_center{
    align-items: center;
}

.align-items_flex-end{
    align-items: flex-end;
}

.align-items_flex-start{
    align-items: flex-start;
}

.justify-content_space-around{
    justify-content: space-around;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
}

.modal h3,p {
    font-size: 12px;
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 50%;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.button_img{
    cursor: pointer;
}

.hidden {
    display: none;
}