Hello, such a problem: for some reason my img doesn’t have weight.

.conteiner { padding: 0px; margin: 25 auto; max-width: 900px; text-align: center; background: #fdfcfc; min-height: 100px; border-top: 1px solid #000; border-bottom: 1px solid #000; } .title { margin: 25px; } h1 { margin-bottom: 5px; font-size: 30px; text-transform: uppercase; } .text { margin: 10px; color: #666; } .icons { display: block; padding-top: 20px; padding-bottom: 20px; } .icon1 { float: left; height: 290; width: 320; } .footer { margin: 12 auto; width: 150px; min-width: 300px; text-align: center; } 
 <section> <div class="conteiner"> <div class="title"> <h1>Proin iaculis purus consequat sem cure.</h1> <p class="text">Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.</p> <div class="icons"> <img src="img/img.jpg" class="icon1" style="opacity:0.25;filter:alpha(opacity=25)" onmouseover="this.style.opacity=1;this.filters.alpha.opacity=100" onmouseout="this.style.opacity=0.4;this.filters.alpha.opacity=40"> </div> </div> </div> </section> <div class="footer"> Copyright 2017 </div>

    1 answer 1

    It is necessary to clear a stream from float: left;

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

    Example

     .conteiner { padding: 0px; margin: 25px auto; max-width: 900px; text-align: center; background: #fdfcfc; min-height: 100px; border-top: 1px solid #000; border-bottom: 1px solid #000; } .title { margin: 25px; } h1 { margin-bottom: 5px; font-size: 30px; text-transform: uppercase; } .title:after { content: ""; display: table; clear: both; } .text { margin: 10px; color: #666; } .icons { display: block; padding-top: 20px; padding-bottom: 20px; } .icon1 { float: left; height: 290; width: 320; } .footer { margin: 12px auto; width: 150px; min-width: 300px; text-align: center; } 
     <section> <div class="conteiner"> <div class="title"> <h1>Proin iaculis purus consequat sem cure.</h1> <p class="text">Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.Proin iaculis purus consequat sem cure digni ssim. Donec porttitora entum suscipit aenean rhoncus posuere odio in tincidunt.</p> <div class="icons"> <img src="http://via.placeholder.com/300.png/09f/fff" class="icon1" style="opacity:0.25;filter:alpha(opacity=25)" onmouseover="this.style.opacity=1;this.filters.alpha.opacity=100" onmouseout="this.style.opacity=0.4;this.filters.alpha.opacity=40"> </div> </div> </div> </section> <div class="footer"> Copyright 2017 </div>