html{ height:100%; }
body{ min-height:100%; padding:0; margin:0; position:relative; }

body::after{ content:''; display:block; height:100px; }

.footer-1{ 
    position:absolute!important;
    bottom: 0 !important; 
    width: 100% !important;
    /* height: 100px !important; */
  }

  .btm_manual-section{

    padding-bottom: 180px!important;
  }

  #section1{background: none!important;}