.sample-container-box,
.sample-container {
    height: 650px;
    width: 100%;
}
.sample-container-box {
    box-sizing: border-box;
    position: relative;
    background-color: #fafafa;
    margin-bottom: 25px;
}
.sample-container {
    left: 0;
    top: 0;
    position: absolute;
    width: 100%;
}