body{
    background-color: #E0FFD1;
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-image: linear-gradient(to bottom, #efe4ce,#e3caab )
    }

html {
  font-family: "Lucida Sans", sans-serif;
}

* {
    box-sizing: border-box;
}


.dialog h2 {
    font-weight: bold;
    text-shadow: 2px 2px 2px #132b10;
    letter-spacing: 1px;
    float: center;
    color: #4fb142;
}

.dialog h3 {
    font-weight: bold;
    text-shadow: 1px 1px 1px #132b10;
    letter-spacing: 0px;
    float: center;
    color: #4fb142;
}

.dialog h4 {
    font-weight: bold;
    text-shadow: 1px 1px 1px #132b10;
    letter-spacing: 0px;
    float: center;
    color: #439638;
}

.dialog tr:hover {
    background-color: inherit;
    color: inherit;
    }

.dialog .toc {
    background-color: #f2d8bd;
    border: 1px solid #aaa;
    display: table;
    font-size: 95%;
    margin-bottom: 1em;
    padding: 20px;
    width: auto;
}

.dialog .toc a {
    text-decoration: none;
}

.dialog .toc a:hover {
    text-decoration: underline;
}

.dialoglink {
  background-color: #d99b50;
  color: black;
  padding: 11px 25px;
  margin: 3px 3px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.dialoglink:hover {
    box-shadow: 0px 0px 4px 4px;
    box-shadow: white;
    color: white;
}

.meetinglink {
    margin-left:30%;
    margin-right:30%;
    width:50%;
    padding-top: 8px;
    padding-bottom: 8px;
    font-weight: normal;
    /*border: 1px solid;*/
    text-decoration: none;
    background-color: #f5bc67;
    color: black;
    text-align: center;
    display: inline-block;
    box-shadow: 0px 0px 3px;
}
.meetinglink:hover {
    background-color: #4fb142;
    color: white;
}


[class*="col-"] {
    float: left;
    padding: 15px;
}

th {
  background-color: #a3661a;
  color: white;
}

tr:hover {
    background-color: #d99b4e;
    color: white;
    }


#nextmeeting_table {
    background-color: #edc89a;
    box-shadow: 0px 0px 15px #a67130;
    border-style: groove;
    border: 2px groove brown;
    margin:20px;
    padding: 15px;
    border-radius: 20px;
    margin-left: 12%;
    margin-right:12%;
    width:76%;

}

#nextmeeting_table:hover {
    background-color: #edc89a;
    box-shadow: 0px 0px 15px #6e4719;

    }

#nextmeeting_table td:hover {
    background-color: #edc89a;
color:black;}

#nextmeeting_table a {
    text-align: center;
    color:black;
    padding: 14px 25px;

    text-decoration: none;
    background-color: #f7db8d;
    border: 3px groove black;
    border-radius: 4px;
}

#nextmeeting_table a:hover {
    background-color: #665a3a;
    color:white;
    border-style: inset;
}

#zatman_table td {
    padding: 10px;
}



#activities_table  td {
    padding: 10px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    }

#activities_table {
    width: 70%;
    margin-left: 15%;
    margin-right: 15%;
}

#activities_table a {
    margin:2px;
    padding: 8px 18px;
    font-weight: normal;
    /*border: 1px solid;*/
    text-decoration: none;
    background-color: #f5bc67;
    color: black;
    text-align: center;
    display: inline-block;
    box-shadow: 0px 0px 3px;
}
#activities_table a:hover {
    background-color: #4fb142;
    color: white;
}

#executive_table {
    width: 60%;
    margin-left: 20%;
    margin-right: 20%;
}

#executive_table td {
    padding: 3px;
}

#symposia_table {
    width: 100%;
}

#dialogtable tr:hover{
    background-color: inherit;
    }

.doornbos_table td {
    padding: 7px;
}
.first_doornbos_table {
    width: 100%;
}
.first_doornbos_table td {
    text-align: center;
    padding: 5px;
}

.symposia_year {
    padding: 10px;
    margin-top: 50px;
    text-align: center;
    background-color: #9c6f38;
    color:black;
    font-weight: normal;
    border-radius: 15px;
    font-size: 22px;
}

.symposia_title {
    text-align: center;
    padding: 6px;
    color:black;
    font-weight: bold;
    background-color: #cfa263;
    border-radius: 15px;
}

.doornbos_year {
    text-align: center;
    background-color: #9c6f38;
    color:black;
    font-weight: bold;
    border-radius: 15px;
}

.row::after {
  content: "";
  clear: both;
  display: block;
}


#banner {
    position: absolute;
    top: 0px;
    background-image:url('../images/rockback.jpg');
    z-index: 10;
    background-position: top;
    background-repeat: repeat-x;
    /*background-color: white;*/
    width: 100%;
    height: 160px;
}

#banner_img {
    top: 0px;
    width: 100%;
    height: 50px;
}

#banner_bottom {
    background-image: linear-gradient(to right, #efe4ce, #e3caab
     ) ;
    z-index:18;
    height: 40px;
}


#banner_title{
    position: absolute;
    top: 0px;
    left: 37%;
    color: #b45c2c;
    text-align: center;
}

#banner_title title1{
    font-size: 72px;
    font-weight: bold;
    text-shadow: 1px 1px 1px #52250c;/*#823b14;*/
    letter-spacing: 18px;
    margin-left: 10%;
    width:80%;
    margin-right: 10%;
    /*color: #d96638;*/
    /*color: #b4462c;*/


}

 #banner_title title2{
    font-weight: bold;
    font-size: 19px;
    text-shadow: 1px 1px 1px #5c290e;
    color: #b46b2c;
    z-index: 5;
}


#menu {
    /*position: absolute;
    top: 220px;
    left: 2%;
    width: 18%;*/
    position: absolute;
    top: 220px;
    left: 2%;
    width: 12%;
    border-color: blue;
    z-index:5;
    /*width:100px;*/
    font-size: 1em;
}

#logo {
    text-align: center;
    position: absolute;
    top: 0px;
    left: 1%;
    z-index: 50;
    margin: 5px;

}

#sedilogo {
    position: absolute;
    left:85%;
    top:0;
    z-index: 50;

    border-width: 10px;
}


#content {
    position: absolute;
    top: 200px;
    left: 22%;


    z-index:5;
    background-image: linear-gradient(to right bottom, #f0c999 2%, #edb877 65%);
    width: 71%;
    padding: 15px;
    box-shadow: 2px 2px 3px 3px;
}

#content c_header {
    font-size: 32px;
    font-weight: bold;
    text-shadow: 2px 2px 2px #132b10;
    letter-spacing: 0px;
    float: center;
    color: #4fb142;
    margin:10px;
    }

#side_ul {

    /*box-shadow: 1px 1px 2px 2px;*/
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 100%;
}



#side_ul li {
    background-color: #ebc57a;
    text-align: center;
    margin-bottom: 18px;
    /* color of previous border  #b89858 */
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    min-width: 140px;
}

#side_ul li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid;
    border-color: #b89858;

}

#side_ul li a.active {
    background-color: #2e1d6d;
    border-color: #5d39e3;
    color: white;
    /* blue color of logo:  #2e1d6d;
       green color of logo: #4fb142
       grey hover color: #555
       brown color: #ebc57a*/
}

#side_ul li a:hover:not(.active) {
    background-color: #4fb142;
    color: white;
}



#normal_list {
    list-style-type: circle;
    margin:15px;
    padding: 5px;
    background-color: #4CAF50;
}

.conduct_item {
    padding: 5px;
    margin: 10px;
    padding: 5px;
    background-color: #d4ccb4;
    background-color: #edcc8e;
    font-weight: bold;
    color: #4CAF50;
    color: #3e8a41;
    color: #355e36;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

.conduct_item:hover {
    color: white;
    background-color:#8a7651;
}
.conduct_list {
    list-style-type: circle;
    margin:15px;
    padding: 5px;
    background-color: #c2a788;
    background-color: #d9aa6c;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}




.non_sticky_banner {
    width: 100%;
}


#vertical_menu {
    top: 0px;
    left: 0;
    z-index: 50;
    width: 100%;
}


#vertical_ul li a:hover:not(.active) {

    background-color: #b45c2c;
    color: white;
    /*border-style: inset;
    border-color: #cca85e;*/
}

#vertical_ul li a.active {
    background-color: #e0b867;
    color: black;
    font-weight:bold;
}


#vertical_ul {
    top: 0%;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow:hidden;
    z-index: 80;
    /*background-color: #f0e4cc; #ebc57a;*/
    box-shadow: 0px 3px 2px;
    /*border-left: 1px solid ;
    border-top: 1px solid;
    border-bottom: 1px solid;*/
    }

.vertical_li{
    background-image: linear-gradient(to right,
        #ecd1b4, #f0e4cc, #f0e4cc, #f0e4cc,#f0e4cc,#f0e4cc, #ecd1b4);
    float: left;
    text-align: center;
    /*border-right: 1px solid;
    */
    border-bottom: none;
    font-weight: bold;
    width: 25%;
}

.vertical_li a {
    /*border-style: outset;*/
    border-color: #cca85e;
    display: block;
    color: black;
    text-align: center;
    padding: 11px 16px;

    /*border: 1px solid;*/
    text-decoration:none;



}

.body_left {
    position: fixed;#
    left: 0%;
    top: 0;
    bottom: 0;
    margin:0px;
    padding:0px;
    background-color: white;
    z-index:20;
}
.body_right {
    position: fixed;
    right: 0%;
    top: 0;
    height:100%;
    margin:0px;
    padding:0px;
    background-image: linear-gradient(to bottom, white, white);
    z-index:20;
}

.body_main {
    position: absolute;
}

@media only screen and (min-width: 1408px) {
  /* For desktop: */
  .body_left_width {
      width: 13%;
  }
  .body_right_width {
      width: 23%;
  }

  .body_main_width {
      width:64%;
      left: 13%;
  }

  .sticky_banner {
      position: fixed;
      top:0;
      width: 64%;
  }
}

@media only screen and (max-width: 1407px) and (min-width: 1102px) {
  /* For desktop: */
  .body_left_width {
      width: 6%;
  }
  .body_right_width {
      width: 12%;
  }

  .body_main_width {
      width:82%;
      left: 6%;
  }

  .sticky_banner {
      position: fixed;
      top:0;
      width: 82%;
  }
}


@media only screen and (max-width: 1101px) and (min-width: 907px) {
  /* For desktop: */
  .body_left_width {
      width: 0%;
  }
  .body_right_width {
      width: 0%;
  }

  .body_main_width {
      width:100%;
      left: 0%;
  }

  .sticky_banner {
      position: fixed;
      top:0;
      width: 100%;
  }
}

@media only screen and (max-width: 906px) and (min-width: 691px) {
    .vertical_li a {
        min-height: 45px;
        padding-top: 4px;
        padding-bottom: 1px;

    }

    #banner_title{
        left: 30%;
    }

    .body_left_width {
        width: 0%;
    }
    .body_right_width {
        width: 0%;
    }

    .body_main_width {
        width:100%;
        left: 0%;
    }

    .sticky_banner {
        position: fixed;
        top:0;
        width: 100%;
    }

    #content {
        left:25%;
        top: 220px;
    }

    #sedilogo {
        left: 81%;
    }
}

@media only screen and (max-width:690px) and (min-width:557px) {
     .vertical_li{
        float:center;
        width: 100%;
    }

    #banner_title{
        left: 25%;
    }

    #side_ul li a {
        padding: 9px 0px;

    }

    #side_ul li {
        min-width: 120px;
    }

    .vertical_li a {
        padding:3px 0px;
    }


    .body_left_width {
        width: 0%;
    }
    .body_right_width {
        width: 0%;
    }

    .body_main_width {
        width:100%;
        left: 0%;
    }

    .sticky_banner {
        position: fixed;
        top:0;
        width: 100%;
    }

    #content {
        top: 275px;
        left: 30%;
        width: 68%;
    }

    #menu {
        top: 390px;
    }

    #sedilogo {
        top:260px;
        left:1%;
        z-index: 10;
    }
}

@media screen and (max-width: 556px) and (min-width: 446px)
{
    .vertical_li{
       float:center;
       width: 100%;
   }

   #banner_title{
       left:22%

   }

   #banner_title title1{
       font-size: 62px;
   }

    #banner_title title2{
       font-size: 14px;
   }

   #logo {
       top:260px;
       z-index: 10;
   }

   #sedilogo {
       top:260px;
       left:50%;
       z-index: 10;
   }
   #side_ul li a {
       padding: 9px 0px;

   }

   #side_ul li {
      width: 80%;
   }

   .vertical_li a {
       padding:3px 0px;
   }


   .body_left_width {
       width: 0%;
   }
   .body_right_width {
       width: 0%;
   }

   .body_main_width {
       width:100%;
       left: 0%;
   }

   .sticky_banner {
       position: fixed;
       top:0;

   }

   #content {
       top: 850px;
       left: 2%;
       width: 96%;
   }

   #menu {
       top: 400px;
       width: 100%;
       left: 10%;
   }
}

@media screen and (max-width: 445px)
{
    .vertical_li{
       float:center;
       width: 100%;
   }

   #banner_title{
       left:6%

   }

   #banner_title title1{
       font-size: 62px;
   }

    #banner_title title2{
       font-size: 14px;
   }

   #logo {
       top:260px;
       z-index: 10;
   }

   #sedilogo {
       top:260px;
       left:50%;
       z-index: 10;
   }
   #side_ul li a {
       padding: 9px 0px;

   }

   #side_ul li {
      width: 80%;
   }

   .vertical_li a {
       padding:3px 0px;
   }


   .body_left_width {
       width: 0%;
   }
   .body_right_width {
       width: 0%;
   }

   .body_main_width {
       width:100%;
       left: 0%;
   }

   .sticky_banner {
       position: fixed;
       top:0;

   }

   #content {
       top: 910px;
       left: 2%;
       width: 96%;
   }

   #menu {
       top: 400px;
       width: 100%;
       left: 10%;
   }
}


<style type="text/css">

</style>