test_widget_opacity.css

.container {
    padding: 10px;
    background-color: #fbfbfb;
}

.list {
    padding: 20px;
    margin: 20px;
    background-color: #f00;
    border: 20px solid #000;
    box-sizing: border-box;
}

.list-item {
    width: 150px;
    height: 100px;
    margin: 5px;
    position: relative;
    display: inline-block;
    background-color: #0f0;
}

.list-item:hover {
    top: -3px;
}

.list-item:active,
.list-item.active {
    top: 0;
    opacity: 0.5;
}

.list-item textview {
    text-align: center;
}

.list-item-footer {
    width: 100%;
    bottom: 0;
    position: absolute;
    padding: 10px 0;
    line-height: 20px;
    text-align: center;
    background-color: #fff;
}

.buttons {
    display: flex;
    justify-content: center;
}

.buttons button {
    margin: 10px 5px;
}

.buttons textview {
    width: 30px;
    margin: 10px 5px;
    text-align: center;
    line-height: 32px;
    display: inline-block;
}