JSFiddle - React, Tailwind, and code Playground

HTML

<div class="main"> 
       <div class="header">
        <div class="ribbon">
        <a href="#">BETA</a>
         </div>  <!--end of robbon div -->
          <div class="logo" class="unselectable">
             <img src="image/DZB.png" style="width:220px;height:120px" alt="logo">
             </div>  <!--end of logo div -->
             
              <div class="login">
               <button name="login" class="add">Login</button><button name="Enquiry" class="upload">Enquiry</button>
              </div> <!--end of login div  --> 
                   
           </div>  <!-- end of header div -->
          <div class="topmenu"> 
           <ul>
            <li><a>Product</a></li>
            <li><a>Contuct us</a></li>
         </ul>  
     </div>   <!--end of Top menu div    -->
     
     <div class="slide">
            
     </div>  <!-- end of slide div -->
     
 </div>      <!-- end of main div  -->

CSS

body {
	margin:0;
	padding:0;
	width:100%;



	font:normal 12px/1.5em "Liberation sans", Arial, Helvetica, sans-serif;
	
}
html {
	padding:0;
	margin:0;
}
div { width: 100%; 

}
.header{
   position:relative;
   width:100%;
  height:150px;
  background: #1e5799; /* Old browsers */
background: -moz-linear-gradient(left,  #1e5799 0%, #2989d8 40%, #1e5799 100%, #7db9e8 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#1e5799), color-stop(40%,#2989d8), color-stop(100%,#1e5799), color-stop(100%,#7db9e8)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left,  #1e5799 0%,#2989d8 40%,#1e5799 100%,#7db9e8 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left,  #1e5799 0%,#2989d8 40%,#1e5799 100%,#7db9e8 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left,  #1e5799 0%,#2989d8 40%,#1e5799 100%,#7db9e8 100%); /* IE10+ */
background: linear-gradient(to right,  #1e5799 0%,#2989d8 40%,#1e5799 100%,#7db9e8 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#1e5799', endColorstr='#7db9e8',GradientType=1 ); /* IE6-9 */
}
.login{
    margin:0;
    padding:0px 0px 0 0;
    text-align:right;
    width:40%;
    position:absolute; 
  right:0;
  bottom:0;

}
.ribbon {
  background-color: #F70D1A;
  overflow: hidden;
  white-space: nowrap;
  /* top left corner */
  position: absolute;
  left: -625px;
  top: 40px;
  /* 45 deg ccw rotation */
  -webkit-transform: rotate(-45deg);
     -moz-transform: rotate(-45deg);
      -ms-transform: rotate(-45deg);
       -o-transform: rotate(-45deg);
          transform: rotate(-45deg);
  /* shadow */
  -webkit-box-shadow: 0 0 10px #888;
     -moz-box-shadow: 0 0 10px #888;
          box-shadow: 0 0 10px #888;
}
.ribbon a {
  border: 1px solid #faa;
  color: #fff;
  display: block;
  font: bold 105.25% 'Helvetica Neue', Helvetica, Arial, sans-serif;
  margin: 1px 0;
  padding: 10px 50px;
  text-align: center;
  text-decoration: none;
  /*...