Menu collapse flickering

Menu collapse flickering

  2. <header class="head-section">
  3. <div style="background-color:black;">
  4. <br/</div>
  5.       <div class="navbar navbar-default navbar-static-top container" style="background-color:black;">
  6.           <div class="navbar-header">
  7.               <button class="navbar-toggle" data-target=".navbar-collapse" data-toggle="collapse" type="button">
  8.                 <span class="icon-bar"></span>
  9.                 <span class="icon-bar"></span>
  10.                 <span class="icon-bar"></span>
  11.               </button>
  12.               <a class="navbar-brand" href="index.html" style="margin-left:60px;"><img src="img\firstake_logo.png" width=50px />
  13.  </a>
  14.           </div>
  15.     <div class="navbar-collapse collapse">
  16.    <div class="menudemo">
  17.  <ul>
  18.     <li>
  19.                       <a href="index.html" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"' 
  20.  style="text-transform:uppercase;font-size:18px;">home</a>
  21. </li>
  22.     <li>
  23.                       <a href="#" style="text-transform:uppercase;font-size:18px;" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>solutions</a>
  24. <ul class="megademo">
  25.                       <li>
  26.  <p style="font-size:20px;text-transform:uppercase;font-weight: 990;"> <b><b>Event Management </b></b></p>
  27.   <a href="solutions.html#infrastructure" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>Infrastructure</a>
  28.   <a href="solutions.html#sound" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>Sound</a>
  29.   <a href="solutions.html#lighting" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>Lighting</a>
  30.   <a href="solutions.html#trussing" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>Trussing</a>
  31.   <a href="solutions.html#av" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>AV</a>
  32.   <a href="solutions.html#gensets" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>Gensets</a>
  33.  </li> <li></li>
  34. <li>
  35. <p style="font-size:16px;text-transform:uppercase;"><strong>&nbsp;&nbsp;&nbsp; Rental Companies </strong></p>
  36. <!--  <h1> </h1> -->
  37.   <a href="solutions.html#audiogear" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>&nbsp;&nbsp;&nbsp;&nbsp;Audio Gear</a>
  38.    <a href="solutions.html#videogear" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>&nbsp;&nbsp;&nbsp;&nbsp;Video Gear</a>
  39. <a href="solutions.html#avequipments" onmouseover='this.style.color="white"' onmouseout='this.style.color="white"'>&nbsp;&nbsp;&nbsp;&nbsp;AV Equipments</a>
  41.  </li>
  42. <li>