main.css

.main_container{
    box-sizing: border-box; width:100%;
    
    }
    .button_green {
        padding: 8px 20px;
        text-align: center;
        cursor: pointer;
        outline: none;
        color: #fff;
        background-color: #00e6b8;
        }
      .button_white {
        background-color: #ffffff;
        color: #000;
      }
      .nav {
          display: inline-block;
      border-top: 1px solid black;
      border-bottom: 1px solid black;
      padding-top:10px;
      height: 40px;
      width:100%;
      }

      .nav a {
          color: black;
          float: left;
          padding: 8px 16px;
          text-decoration: none;
          transition: background-color .3s;
          
      }

      .nav a.active {
          background-color: #3399ff;
          color: white;
          border: 1px solid #3399ff;
      }

      .nav a:hover:not(.active) {background-color: #ddd;}

      .im {
           background-image: url('images/img-1.jpg');
           max-width: 100%
    }
      textarea {
        width: 80%;
        padding: 12px 20px;
        box-sizing: border-box;
        border: 2px solid #ccc;
        background-color: #f8f8f8;
        resize: none;
    }
    input[type=text] {
        width: 80%;
        padding: 12px 20px;
        margin: 8px 0;
        box-sizing: border-box;
        background-color: #f8f8f8;
    }
    .header_head{
    height: 100px; width:100%;
    }
    .header_button{
    padding-top:50px;
    float: right;
    height: 10px;
    width:50%;"
    }
    .logo_image{
    float: left;
    height: 10px;
    width:50%;"
    }
    .header_div{
    height: 100px; 
    width:100%;
    }
    .banner_logo{
    padding-top:20px; 
    height:300px; 
    width:100%;
    }
    .watch_div{
    height:300px; 
    width:80%;
    }
    .watch_text{
    background-color:#f0f5f5; float: left; height:100%; width:50%;
    }
    .watch_image{
    float: right; height:100%; width:50%;
    }
    .items{
    height: 400px; width:80%;
    }
    .item{
    float: left; height:100%; width:33%;
    }
    .shoes{
    margin:0 auto; 
    }
    
    .promotion{
    box-sizing: border-box; padding-left: 10%; padding-top: 20px; background-color:#eff5f5; height: 300px; width:100%;
    }
    .sun_glass{
    padding-left: 10%; height: 150px; width:40%;
    }
    .footer_div{
    padding-top:100px; padding-left:50px; background-color:#eff5f5; height: 100%; width:80%;
    background-color:#eff5f5; height: 100%; width:80%;
    
    }
    .footer_div2{
    float: right; height:300px; width:50%;
    }
    .footer_form{
    float: left; height:300px; width:50%; box-sizing: border-box;padding-top: 50px;
    }
    .tagline{
    padding-top:20px; height:200px; width:100%;
    }