CSS Buttons - Modern and Interactive Design

The example below demonstrates various ways to design buttons using CSS. The first button uses subtle shadows and an elegant color transition, while the second demonstrates a circular shape with a dynamic size change upon hovering.

EXAMPLE

                        <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="main-container">
        <button class="btn1">Hello World!</button>
        <button class="btn2">Click Me</button>
        <button class="btn3">WAAAAAW!</button>
    </div>
</body>
</html>
        
                    

                        .main-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    padding: 20px;
}
button {
    margin: 20px;
    cursor: pointer;
    font-family: "Calibri Light", sans-serif;
}

.btn1 {
    padding: 15px 30px;
    font-size: 18px;
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    color: #333333;
    border: none;
    border-radius: 8px;
    box-shadow: 5px 5px 10px #d9d9d9, -5px -5px 10px #ffffff;
    transition: all 0.3s ease;
    -webkit-text-fill-color: #333333;
}
.btn1:hover {
    background: linear-gradient(145deg, #f5f5f5, #ffffff);
    box-shadow: 8px 8px 15px #d9d9d9, -8px -8px 15px #ffffff;
    transform: translateY(-2px);
}
.btn1:active {
    transform: translateY(1px);
    box-shadow: inset 5px 5px 10px #d9d9d9, inset -5px -5px 10px #ffffff;
}

.btn2 {
    width: 120px;
    height: 120px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #6ac1ff, #2196f3);
    color: white;
    box-shadow: 0 8px 15px rgba(33, 150, 243, 0.3);
    transition: all 0.4s ease;
}
.btn2:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 25px rgba(33, 150, 243, 0.4);
}
.btn2:active {
    transform: scale(0.95);
    box-shadow: 0 5px 10px rgba(33, 150, 243, 0.2);
}

.btn3 {
    position: relative;
    padding: 15px 50px;
    font-size: 18px;
    font-weight: bold;
    color: white;
    background: linear-gradient(45deg, #ff0000, #ff8c00, #ffff00, #00ff00, #00ffff, #0000ff, #8b00ff);
    background-size: 400% 400%;
    border: none;
    border-radius: 25px;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    animation: rainbow 5s linear infinite;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}
.btn3::before, .btn3::after {
    content: "";
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background-size: contain;
    background-repeat: no-repeat;
}
.btn3::before {
    left: 15px;
    background-image: url("/icons/left-black.svg");
}
.btn3::after {
    right: 15px;
    background-image: url("/icons/right-black.svg");
}
.btn3:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.4);
    letter-spacing: 3px;
}
.btn3:active {
    transform: scale(0.95);
}

@keyframes rainbow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@media screen and (max-width: 380px) {
    .btn2 {
        width: 100px;
        height: 100px;
        font-size: 14px;
    }
    .btn3 {
        font-size: 16px;
        padding: 12px 45px;
    }
}
        
                    

RESULT

CSS Buttons with Modern Effects