style2.css

img {
    border-style: solid;
}
 h1 {
     text-align: center;
 }
h2 {
	text-align: center;
}

ul {
          list-style-type:none;   
          margin: 0;
          padding: 0;
          overflow: hidden;
          background-color:violet;
          
         }

         li {
               float:left;
            }

             li a {
                display: flex;
                color: white;
                text-align: center;
                padding: 14px 16px;
                text-decoration:solid;
                font-weight: 1000;
             }

             .active {
                background-color:blueviolet;
             }

button {
	color: green;
	padding: 11px 33px;
	text-align: center;
	display: inline-block;
	font-size: 25px;
	background-color: khaki;
	border-style: solid;
	border-radius: 20px;
}

button:hover span {
	color: red;
   padding-right: 25px;
}
button:hover span:after {
  opacity: 1;
  right: 0;
}
button span {
	cursor: pointer;
	display: inline-block;
	position: relative;
	transition: 0.4s;
}
button span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}
body{
  background-color: #dfecf7;
}

.container{
  max-width: 600px;
  margin: 0 auto;
}

.comment-box {
  background-color: #fff;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.comment-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 30px;
  color: #fff;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 5px;
  color: #fff;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 10px;
  border-radius: 5px;
  border: none;
  font-size: 16px;
  transition: background-color 0.3s;
  background-color: #f2f2f2;
  color: #333;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
  background-color: #fff;
}

.btn-submit {
  background-color: #005aaa;
  color: #fff;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  font-size: 18px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-submit:hover {
  background-color: #003366;
}

.gradient-bg {
  background: linear-gradient(to bottom, #003366, #005aaa);
}

.gradient-bg .btn-submit {
  background-color: #fff;
  color: #005aaa;
  border: 2px solid #fff;
  transition: background-color 0.3s, color 0.3s;
}

.gradient-bg .btn-submit:hover {
  background-color: #005aaa;
  color: #fff;
}