main {
    display: flex;
    flex-wrap: wrap;
    padding: 50px;
    gap: 3em;
}

section {
    display: flex;
    flex-direction: column;
    align-items: center;

    width: 300px;
    height: 320px;
}

.demo {
    display: flex;
    justify-content: space-evenly;

    width: 300px;
    height: 300px;
}

.items {
    width: 100px;
    height: 300px;

    padding: 5px;
    background-color: aquamarine;
}

.dropzone {
    width: 200px;
    height: 300px;

    padding: 5px;
    background-color: thistle;
}

.circle {
    position: relative;

    width: 90px;
    height: 90px;

    border-radius: 45px;
}

ul {
    padding-left: 0px;
}

.items li{
    list-style-type: none;

    font-size: 1.5rem;
}

#dropzone-text {

    font-size: 1.5rem;
}

.items img {
    width: 90px;
    height: 90px;
}

#example3 .dropzone {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dropzone img {
    width: 150px;
    height: 150px;
}