.container-header {
position: relative;
z-index: 10;
margin-bottom: 20px;
background-color: #da251c;
box-shadow: 0 5px 5px rgba(0, 0, 0, 0.03) inset;

}

/*Back top*/
.back-to-top-link.visible {
  position: fixed;
  bottom: 20px;
  right: 30px;
}


.img-thumbnail-right {
  padding: 0.25rem;
  background-color: hsl(0deg, 0%, 100%);
  border: 1px solid hsl(210deg, 14%, 89%);
  border-radius: 0.25rem;
  max-width: 100%;
  height: auto;
  float: right;
}

.img-thumbnail-left {
  padding: 0.25rem;
  background-color: hsl(0deg, 0%, 100%);
  border: 1px solid hsl(210deg, 14%, 89%);
  border-radius: 0.25rem;
  max-width: 100%;
  height: auto;
  float: left;
}

.clearfix::after {
  content: "";
  clear: both;
  display: table;
}