I have some different images with different dimensions, and I need to erase that blank space between photos. How can I do that?
Here is what I wanted to do(first column):

My codes:
HTML
<div class="news-pc">
         <div class="row" style="margin-right: 140px; margin-left: 120px">
         @foreach($news as $news)
         @if($newsC > 4)
        @if($news->news_class == 'height')
          <div class="col-md-3" style="padding-right: 0px;margin-bottom: 40px;line-height: 0;">
           <a href="{{ url('news') }}/{{ $news->slug }}">
             <div class="element transition {{ $news->slug }} editorial news video-exhibition" style="width: 100%">
               <div class="item-gallery {{ $news->news_class }}">
                 <div class="content-item">
                    <div class="img__wrap">
                      <img class="img__img my-image" src="{{ url('images/news') }}/{{ $news->image }}" />
                      <div class="img__description_layer">
                        <p class="img__description" style="float: left;font-size: 1.84615em;font-style: italic">
                          {{ $news->title }}</p>
                      </div>
                    </div>
                    <div class="text">
                        <div class="name"></div>
                        <div class="content-gallery-grid">
                           <h3 class="title">
                             <!-- <a href="{{ url('news') }}/{{ $news->slug }}"> -->
                             <!-- </a> -->
                           </h3>
                        </div>
                    </div>
                 </div>
               </div>
            </div>
           </a>
         </div>
         @elseif($news->news_class == 'normal')
         <div class="col-md-3 contentWrap" id="column1" style="padding-right: 0px;margin-bottom: 40px;line-height: 0;">
          <a href="{{ url('news') }}/{{ $news->slug }}">
            <div class="element transition {{ $news->slug }} editorial news video-exhibition" style="width: 100%">
              <div class="item-gallery {{ $news->news_class }}">
                <div class="content-item">
                   <div class="img__wrap2">
                     <img class="img__img my-image" src="{{ url('images/news') }}/{{ $news->image }}" style="width: 268px; height: 270px"/>
                     <div class="img__description_layer">
                       <p class="img__description" style="float: left;font-size: 1.84615em;font-style: italic">
                         {{ $news->title }}</p>
                     </div>
                   </div>
                   <div class="text">
                       <div class="name"></div>
                       <div class="content-gallery-grid">
                          <h3 class="title">
                            <!-- <a href="{{ url('news') }}/{{ $news->slug }}"> -->
                            <!-- </a> -->
                          </h3>
                       </div>
                   </div>
                </div>
              </div>
           </div>
          </a>
        </div>
        @elseif($news->news_class == 'small')
        <div class="col-md-3 contentWrap" id="column1" style="padding-right: 0px;margin-bottom: 40px;line-height: 0;">
         <a href="{{ url('news') }}/{{ $news->slug }}">
           <div class="element transition {{ $news->slug }} editorial news video-exhibition" style="width: 100%">
             <div class="item-gallery {{ $news->news_class }}">
               <div class="content-item">
                  <div class="img__wrap3">
                    <img class="img__img my-image" src="{{ url('images/news') }}/{{ $news->image }}" style="width: 268px; height: 180px" />
                    <div class="img__description_layer">
                      <p class="img__description" style="float: left;font-size: 1.84615em;font-style: italic">
                        {{ $news->title }}</p>
                    </div>
                  </div>
                  <div class="text">
                      <div class="name"></div>
                      <div class="content-gallery-grid">
                         <h3 class="title">
                           <!-- <a href="{{ url('news') }}/{{ $news->slug }}"> -->
                           <!-- </a> -->
                         </h3>
                      </div>
                  </div>
               </div>
             </div>
          </div>
         </a>
       </div>
       @endif
         @endif
            @endforeach
          </div>
        </div>
CSS:
.my-image{
     content: '';
     width: 268px;
     height: 470px;
     object-fit: cover;
     top: 0;
     left: 0;
     background: rgba(0,0,0,.3);
     z-index: 1;
}
/* relevant styles */
.img__wrap {
 position: relative;
 width: 268px;
 height: 470px;
}
@media only screen and (max-width: 800px){
    .img__wrap {
     position: relative;
     width: 384px;
     height: 450px;
    }
}
.img__wrap2 {
 position: relative;
 width: 268px;
 height: 270px;
}
@media only screen and (max-width: 800px){
    .img__wrap2 {
     position: relative;
     width: 384px;
     height: 330px;
    }
}
.img__wrap3 {
 position: relative;
 width: 268px;
 height: 180px;
}
@media only screen and (max-width: 800px){
    .img__wrap3 {
     position: relative;
     width: 384px;
     height: 180px;
    }
}
.img__description_layer {
 position: absolute;
 top: 0;
 bottom: 0;
 left: 0;
 right: 0;
 background: rgba(0,0,0,.3);
 color: #fff;
 visibility: hidden;
 opacity: 0;
 display: flex;
 align-items: center;
 justify-content: center;
 /* transition effect. not necessary */
 transition: opacity .2s, visibility .2s;
}
.img__wrap:hover .img__description_layer {
 visibility: visible;
 opacity: 1;
}
@media only screen and (max-width: 800px){
    .img__wrap:hover .img__description_layer {
     visibility: visible;
     opacity: 1;
    }
}
.img__wrap2:hover .img__description_layer {
 visibility: visible;
 opacity: 1;
}
@media only screen and (max-width: 800px){
    .img__wrap2:hover .img__description_layer {
     visibility: visible;
     opacity: 1;
     top: 35px;
    }
}
.img__wrap3:hover .img__description_layer {
 visibility: visible;
 opacity: 1;
}
@media only screen and (max-width: 800px){
    .img__wrap3:hover .img__description_layer {
     visibility: visible;
     opacity: 1;
    }
}
.img__description {
 transition: .2s;
 transform: translateY(1em);
}
@media only screen and (max-width: 800px){
    .img__wrap:hover .img__description {
     transform: translateY(0);
    }
}
.img__wrap:hover .img__description {
 transform: translateY(0);
}
.img__wrap2:hover .img__description {
 transform: translateY(0);
}
@media only screen and (max-width: 800px){
    .img__wrap2:hover .img__description {
     transform: translateY(0);
    }
}
.img__wrap3:hover .img__description {
 transform: translateY(0);
}
@media only screen and (max-width: 800px){
    .img__wrap3:hover .img__description {
     transform: translateY(0);
    }
}
@media only screen and (max-width: 800px) {
 .news-pc{
     display: none;
 }
}
So, here I have col-md-3 bootstrap class with row class. {{news->news_class}} has 3 values : small, normal and height. Every class has a different height, 180px, 270px and 450px. Like in my photo, first image has small class, which means it has 180px, and the fifth ( first of the second row) has heigh class, with 450px. I need to erase that space if some images has other values.

 
     
    