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CSS How to Make a Website Styling Web Pages and Navigation Make a CSS Image Gallery

background color of images not appear

so the background color behind the text below images is not appearing and in my browser, the second row has only one image when i reduce window width...

/**************************
Page Portfolio
**************************/

#gallery{
  margin:0;
  padding:0;
  list-style:none;
}

#gallery li{
  float:left;
  width:45%;
  margin:2.5%;
  background-color:f5f5f5;
  color:bdc3c7;
}

#gallery li a p{
  margin:0;
  padding:5%;
  font-size:0.75em;
  color: #bdc3c7;
}
<section>
        <ul id="gallery">
          <li>
            <a href="img/numbers-01.jpg">
              <img src="img/numbers-01.jpg" alt="">
              <p>Experimentation with color and texture.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-02.jpg">
              <img src="img/numbers-02.jpg" alt="">
              <p>lending modes.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-06.jpg">
              <img src="img/numbers-06.jpg" alt="">
              <p>80s style.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-09.jpg">
              <img src="img/numbers-09.jpg" alt="">
              <p>Brushes.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-12.jpg">
              <img src="img/numbers-12.jpg" alt="">
              <p>Shapes and repetition.</p>
            </a>
          </li>
        </ul>
      </section>

2 Answers

It looks like your missing some # symbols before the hex values. It should read as.

#gallery li {
  float: left;
  width: 45%;
  margin: 2.5%;
  background-color: #f5f5f5;
  color: #bdc3c7;
}

As for the disappearing image the only difference in your code is the paragraph text, so maybe that has to do with some text wrapping in the length of your text. The code below works fine.

<section>
        <ul id="gallery">
          <li>
            <a href="img/numbers-01.jpg">
              <img src="img/numbers-01.jpg" alt="">
              <p>Experimentation with color and texture.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-02.jpg">
              <img src="img/numbers-02.jpg" alt="">
              <p>Playing with blending modes in Photoshop.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-06.jpg">
              <img src="img/numbers-06.jpg" alt="">
              <p>Trying to create an 80's style of glows.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-09.jpg">
              <img src="img/numbers-09.jpg" alt="">
              <p>Drips created using Photoshop brushes.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-12.jpg">
              <img src="img/numbers-12.jpg" alt="">
              <p>Creating shapes using repetition.</p>
            </a>
          </li>
        </ul>
      </section>

beautiful. much appreciated!

By the way the layout breaks if the second li is less than about 38 characters.