#gallery {
    width: 100%;
    display: block;
    margin: 0 auto;
}

.brick {
    float: left;
    position: relative;
}
.grid-sizer { width: 25%; }
.brick { width:25%; padding: 10px; }


@media screen and (max-width: 1224px) {
  /* 10 columns for larger screens */
  .grid-sizer { width: 33.33%; }
  .brick { width: 33.33%; }
}

@media screen and (max-width: 720px) {
  /* 10 columns for larger screens */
  .grid-sizer { width: 50%; }
  .brick { width: 50%; }
}

@media screen and (max-width: 480px) {
  /* 10 columns for larger screens */
  .grid-sizer { width: 100%; }
  .brick { width: 100%; }
}

.brick img {
    width: 100%;
}
.galoverlay {
    background-color: rgba(0,0,0,0.5);
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    text-decoration: none;
    display: inline-block;

}
.galoverlay .title {
    text-align: center;
    font-size: 22px;
    color: #fff;
    font-family: 'Open Sans', sans-serif;
    font-weight: 500;
}
.galoverlay .titlegallery {
    text-align: center;
    font-size: 15px;
    position:absolute;
    bottom: 10px;
    width:100%;
    color: #ffffff;
    font-family: 'Open Sans', sans-serif;
    font-weight: 500;
}