li a {
    color: red;
}

img {
    display: block;
    margin: auto;
    width: 50%;
}




.navbar-brand:hover {
  color: red;
  text-decoration: underline;
  background-color: white;
}

.navbar-brand[disabled]:hover {
  color: green;
  text-decoration: none;
  
}

.tablink {
    background-color: red;
    color: white;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    font-size: 17px;
    width: 25%;
}

.tablink:hover {
    background-color: #4682B4;
    padding: 14px 16px;
    font-size: 17px;
    
}

div.container {
	min-height:400px;
    width: 100%;
    background-color:cyan;
}

div.container .link {
	float:left;
	border: 20px;
	height:400px;
	width: 250px;
	background-color: skyblue;
	text-align: center;
	
}



header {
    color: orange;
    text-align: right;
    width:100%;	  
    height:130px;
}

.ban_img{
	padding : 1em;
	width:500px;
	height:30px;
	margin-left: -70px;	
}
.ban_imgai{
	padding : 1em;
	width:300px;
	height:10px;
	margin-left: -50px;	
}

.test_text h2 {
	padding:0.1em;
	height: 40px;
	font-style:oblique;
		
}

h2 b{
	background: linear-gradient(to right,#00adff, #ff8100);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}


h1 {
	padding : 0.1em;
    color: black;
    background-color: grey;
    clear: left;
    text-align: center;
}

footer {
    margin-top: 50px;
	color: white;
    background-image: linear-gradient(to right,#00adff, #ff8100);
    clear: left;
    text-align: center;
    height: 25px;
    position: relative; 
    width: 100%;
}



navbar {
    padding: 1em;
    color: white;
    background-color: red;
    clear: left;
    text-align: center;
}


article {
    margin-left: 170px;
    border-left: 1px solid gray;
    padding: 1em;
    overflow: hidden;
}

/* radio */

form ul.radiolist li {
    list-style-type: none;
}

form ul.radiolist label {
    float: none;
    display: inline;
}

form ul.radiolist input[type="radio"] {
    margin: -2px 4px 0 0;
    padding: 0;
}

form ul.inline {
    margin-left: 0;
    padding: 0;
}

form ul.inline li {
    float: left;
    padding-right: 7px;
}

.fixed {
    height:max-content;
}