.overlay {
    height: 0%;
    width: 100%;
    position: fixed;
    z-index: 110;
    top: 0;
    left: 0;
    background-color: #202020;
    overflow-y: hidden;
    transition: 0.5s;
}

.overlay-content {
    position:relative;
    top: 70px;
    text-align:right;
      margin-left:25px;
  margin-right:25px;
}

.overlay a {
    padding: 8px;
    text-decoration: none;
    font-size: 36px;
    color: #ffffff;
    display: block;
    transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
    color: #ebebeb;
}

.overlay .closebtn {
    position: absolute;
    top: 12px;
    right: 10px;
    font-size: 30px;
    border:0px solid red;
    
}

.closebtn-left
{
        background-image: url(../images/mobile-baner-left.png);
                position:absolute;
                top: 0px;
                left: 10px;
                z-index: 0;
               height: 34%;
                background-repeat: no-repeat;
                width: 60%;}

@media  screen and (max-height: 450px) {
  .overlay {overflow-y: auto;}
  .overlay a {font-size: 20px}
  .overlay .closebtn {
    font-size: 30px;
    top: 9px;
     right: 25px;
  }
}