* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.wrapper {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.container {
    flex: 1;
}
.gamefield {
    border: solid black 1px;
    position: absolute;
    left: 0;
    top: 40px;
    width: 100%;
    padding: 10px;
    bottom: 0;
    overflow: auto;
    background-color: rgb(166, 239, 241);
}
.preview-block {
    position: absolute;
    background-image: url(../data/img.jpg);
    left: 0px;
    top: 0px;
    display: block;
    width: 1900px;
    height: 1200px;
    background-repeat: no-repeat;
    background-position: -9px 0px;
    margin: 0;
}
.image-piece {
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    position: absolute;
    pointer-events: none;
}
.image-piece__content {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
}

.dragable {
    z-index: 1;
}

.dragable__drag-pointer {
    cursor: move;
    pointer-events: initial;
}
header {
    flex: 0 0 40px;
}
.menu-list {
    list-style: none;
    height: 100%;
    display: flex;
    align-items: stretch;
}
.menu-list__button {
    width: 200px;
    height: 100%;
    border: solid black 1px;
    border-radius: 10px 10px 0 0;
    background-color: white;
}
.menu-list__button:hover {
    background-color: whitesmoke;
}
.hidden {
    display: none;
    height: 0;
}