/* Dropdown Button */ 
.dropdown-button { 
    background-color:  #969696; 
    color: white; 
    padding: 16px; 
    font-size: 16px; 
    border: none;
    padding-top: 8px;
    padding-bottom: 8px;}
.dropdown {position: relative; display: inline-block; } 

/* Dropdown Content (Hidden by Default) */ 
.dropdown-list { 
    display: none; 
    position: absolute; 
    background-color: #f1f1f1; 
    min-width: 250px; 
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); 
    z-index: 1; } 
.dropdown-list ul { 
max-height:300px; 
overflow:auto;
list-style-type: none;}

/* Links inside the dropdown */ 
.dropdown-list li a { 
    color: black; 
    padding: 12px 16px; 
    text-decoration: none; 
    display: block; 
    font-family: verdana; 
   max-height:300px;/* you can change as you need it */
   overflow:auto;/* to get scroll */} 
   
/* Change color of dropdown links on hover */ 
.dropdown-list li a:hover {background-color: #ddd; } 

/* Show the dropdown list on hover */ 
.dropdown:hover .dropdown-list {display: block; } 

/* Change the background color of the dropdown button when the dropdown list is shown */ 
.dropdown:hover .dropdown-button {background-color: #6d6d6d;}
.arrow {border: solid white; border-width: 0 3px 3px 0; display: inline-block; padding: 3px;}

.right {transform: rotate(-45deg);-webkit-transform: rotate(-45deg);}
.left {transform: rotate(135deg);-webkit-transform: rotate(135deg);}
.up {transform: rotate(-135deg);-webkit-transform: rotate(-135deg);}
.down {transform: rotate(45deg);-webkit-transform: rotate(45deg);}