*, ::after, ::before {
    box-sizing: border-box;
}

.container-fluid, .page-container {
    position: relative;
}

.slideshow-title{
    display: flex;
    background:lightgray;
    width:100%;
    justify-content: center;
    padding:5px;
    border-bottom-left-radius:10px;
    border-bottom-right-radius:10px;
    border:1px solid black;


}

.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

.page-content {
    display: flex;
    flex-wrap: wrap;
}

.box-usace {
    margin: 0 0 32px;
    position: relative;
}

/* ================== */
/* Return to Top Button */
#returnTop {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    font-size: 18px;
    border: none;
    outline: none;
    background-color: red;
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 4px;
  }

#returnTop:hover {
    background-color: #555;
  }