#container {
    display: inline-block;
    white-space: nowrap;
}

#container > div {
    display: inline-block;
    vertical-align: middle;
}


#field {
    width: 600px;
    height: 600px;
    border: 2px solid #000;
    border-radius: 50%;
    position: relative;
    background-color: rgb(255,255,255);
}

#field div {
    width: calc(100% - 120px);
    height: calc(100% - 120px);
    border: 2px solid #000;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#boxes div {
    width: 70px;
    height: 70px;
    margin: 20px 0;
}

#boxes div img {
    width: 100%;
    height: auto;
}

.draggable {
    position: absolute;
    margin: 0;
    border: 1px dashed #777;
    border-radius: 2px;
}


.button {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    outline: none;
    background-color: rgb(180, 180, 180);
    border-radius: 7px;
    cursor: pointer;
    position: absolute;
}