body {
    margin: 0;
    font-family: Arial, sans-serif;
    text-align: center;
    background: #eef3ff;
    color: #000;
}

header {
    background: #2e008b;
    color: #fff;
    padding: 20px;
    box-shadow: 0 2px 6px rgba(0,0,0,.5);
}

header h1 {
    margin: 0;
    font-size: 1.6rem;
}

.hover-underline {
    font-size: 2rem;
    position: relative;
    display: inline-block;
    color: #ffffff;
}

.hover-underline a {
    color: inherit;
    text-decoration: none;
}

.hover-underline::after,
.hover-underline::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, #0015ff, #00ffff);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.hover-underline::after {
    bottom: -5px;
    left: 0;
    transform-origin: right;
}

.hover-underline::before {
    top: -5px;
    left: 0;
    transform-origin: left;
}

.hover-underline:hover::after,
.hover-underline:hover::before {
    transform: scaleX(1);
}


h2 {
    margin-top: 10px;
}

p {
    margin-top: 10px;
    line-height: 1.4;
}

h4 {
    color: hotpink;
    margin-top: 10px;
}

.img-box {
    display: inline-block;
    background: darkblue;
    padding: 15px;
    border-radius: 8px;
    margin: 10px;
}

.img-box img {
    width: 200px;
    border-radius: 15px;
    transition: transform .3s;
}

.img-box img:hover {
    transform: scale(1.03);
}