body {
    display: block !important;
    background-color: steelblue;
}

#app {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    height: 90vh;
}

.drag-item {
    width: 100%;
    height: 100%;
    background-color: red;
}
.drag-item:hover {
    cursor: pointer;
}
.drag-item.drag {
    border: 5px solid gray;
}

.drop-box {
    width: 150px;
    height: 150px;
    border: 3px solid;
    background-color: white;
}

.drop-box.hover {
    border: 3px dashed white;
    background-color: gray;
}