"Utilizing a custom CSS style for a half heart rating system

I am currently working on implementing a rating system using the font-awesome fa-heart class. While I have successfully colored the full heart, I am facing difficulty in filling only the first half of the heart in red. Despite my research efforts, all solutions involve stars instead of half hearts and do not utilize font-awesome.

Unfortunately, I am limited to using font awesome version 4.0.3 and cannot upgrade...

Does anyone know a clever workaround for this issue?

.full {
  color: red;
}
.half {

}
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.min.css">

<div class="rating-love ">
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart half"></span>  
     <a href="#reviews"><span>23 Review(s)</span></a>
                    </div>

htmlcss

Answer №1

One interesting concept is showcased here, where you have the flexibility to adjust any type of rating by simply modifying a CSS variable:

.rating-love {
  display: inline-grid!important;
}

.rating-love:before,
.rating-love:after {
  content: "\f004  \f004  \f004  \f004  \f004";
  grid-area: 1/1;
}

.rating-love:after {
  white-space: nowrap;
  overflow: hidden;
  width: var(--w);
  color: red;
}
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.min.css">

<div class="rating-love fa" style="--w: 50%;"></div>

<br>

<div class="rating-love fa" style="--w: 30%;"></div>

<br>

<div class="rating-love fa" style="--w: 80%;"></div>

Answer №2

You can achieve this effect by using text Clip & Background Gradient technique. By creating a gradient with 2 colors and utilizing clip, you can make an interesting design like splitting a heart in half, for example. Changing the hex code in your CSS will allow you to customize which part of the shape is colored.

.fa-heart.half:before {
    background: -webkit-linear-gradient(180deg,#000 0%, #000 50%,#FF0000 50%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


.full {
  color:red;
}
.half {

}
.fa-heart.half:before {
    background: -webkit-linear-gradient(180deg,#000 0%, #000 50%,#FF0000 50%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.min.css">

<div class="rating-love ">
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart full"></span>
     <span class="fa fa-heart half"></span>  
     <a href="#reviews"><span>23 Review(s)</span></a>
                    </div>

Answer №3

One way to handle this without the use of JavaScript is by reducing the width of the span element by half and hiding any overflow.

.full {
  color: red;
  vertical-align:text-bottom;
}

.half {
  color: red;
  width: 8px;
  overflow: hidden;
  vertical-align:text-bottom;
  margin-right: 8px;
}
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.0.3/css/font-awesome.min.css">

<div class="rating-love ">
  <span class="fa fa-heart full"></span>
  <span class="fa fa-heart full"></span>
  <span class="fa fa-heart full"></span>
  <span class="fa fa-heart full"></span>
  <span class="fa fa-heart half"></span>
  <a href="#reviews"><span>23 Review(s)</span></a>
</div>

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