my_map.css

body {
    margin: 0;
    height: 100%;
    font-family: Verdana, Geneva, Tahoma, sans-serif;

}

.header {
    position: absolute;
    top: 0;
    height: 60px;
    left: 0;
    right: 0;
    text-align: center;
    background: rgb(40, 84, 108);
    color: #f1f1f1;
    border-bottom: 5px solid rgb(162, 165, 166);
    box-sizing: border-box;
    padding: 0 20px;
}

.map {
    position: absolute;
    top: 60px;
    bottom: 0;
    left: 0;
    right: 25%;
}

.sidebar {
    position: absolute;
    top: 60px;
    bottom: 0;
    right: 0;
    width: 25%;
    background: rgb(40, 84, 108);
    color: #f1f1f1;
    border-left: 5px solid rgb(162, 165, 166);
}

.sidebar_panel {
    width:100%;
    height:50%;
    vertical-align:top;
    box-sizing: border-box;
    padding: 0 20px;
}
.side_top {
top: 0;
bottom: 60%;
height: 40%;
overflow: scroll;
border-bottom: 5px solid lightsteelblue;
}
.side_bottom {
top: 40%;
bottom: 0;
height: 60%;
overflow: scroll;
}


/* Style the button that is used to open and close the collapsible content */
.collapsible {
    background-color: rgb(5, 54, 80);
    color: rgb(255, 255, 255);
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 15px;
}
  
  /* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
.active, .collapsible:hover {
    background-color: rgb(0, 34, 51);
}
  
  /* Style the collapsible content. Note: hidden by default */
.content {
    padding: 0 18px;
    display: none;
    overflow: hidden;
    background-color: #014141;
}

.collapsible:after {
    content: '\02795'; /* Unicode character for "plus" sign (+) */
    font-size: 13px;
    color: rgb(255, 255, 255);
    float: right;
    margin-left: 5px;
}

  
.active:after {
    content: "\2796"; /* Unicode character for "minus" sign (-) */
    color: white;
}


.content {
    padding: 0 18px;
    background-color: rgb(5, 54, 80);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}

a {
    color: rgb(142, 122, 214);
}

a:visited {
    color: rgb(187, 68, 68);
}