/* Style the tab */
div.tab {
    float: left;
    border: 1px solid #888b8e;
    background-color: #0066CC;
    width: 30%;
    height: 387px;
	  border: 1px solid black;

	}

/* Style the buttons inside the tab */
div.tab button {
    display: block;
    background-color: inherit;
    color: #fff;
    padding: 9px 2px;
    width: 100%;
    border: none;
    outline: none;
    text-align: left;
    cursor: pointer;
    transition: 0.3s;
	
   border: 1px solid black;
border-style: ridge;
	
}


/* Change background color of buttons on hover */
div.tab button:hover {
    background-color: #FFCB27;
}

/* Create an active/current "tab button" class */
div.tab button.active {
    background-color: #FFCB27;
	color:#000;
}

/* Style the tab content */
.tabcontent {
    float: left;
    padding: 0px 12px;
    border: 1px solid #ccc;
    width: 70%;
    border-left: none;
    height: 387px;
	display: none;
	overflow:auto;
	border: 1px solid black;	
}
<style>
table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

td, th {
    border: 1px solid #dddddd;
    text-align: center;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: #dddddd;
}
</style>

@media screen and (max-width: 480px) {
	table {
		overflow-x: auto;
		display: block;
	}
	th,td,tr {
		overflow-x: auto;
		display: block;
	}
}



.tab{
    scrollbar-base-color: orange; 
scrollbar-arrow-color: green;
scrollbar-DarkShadow-Color: blue; 
}