Password Page customization examples (Custom HTML and CSS)

body {
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: top;
    background-image: url(https://images.unsplash.com/photo-1601649705707-13b54dc57b87?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1313&q=80);
    width: 100%;
    height: 100%;
    font-family: Arial, Helvetica;
    letter-spacing: 0.02em;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

section.info {
    position: relative;
    background: inherit;
    border-radius: 2px;
    overflow: hidden;
}

section.info:after {
    content: '';
    width: 400px;
    height: 300px;
    background: inherit;
    position: absolute;
    left: -25px;
    right: 0;
    top: -25px;
    bottom: 0;
    box-shadow: inset 0 0 0 200px rgba(255, 255, 255, 0.05);
    filter: blur(10px);
}

section.info main {
    position: relative;
    z-index: 1;
}

section.info main header {
    color: #fdfbfb;
}

.field-label {
    color: #fdfbfb;
}

.buttons input[type="submit"] {
    border: 2px solid white;
    background: none;
    color: black;
    cursor: pointer;
}

input:focus {
    background-color: rgba(255, 255, 255, 0.1) !important;
}

footer {
    background: #07358a;
    padding: 10px 120px;
}

<!-- HTML on beginning -->
<header style="display: flex; align-items: center; font-size: 2em">
<img style="width: 128px; height: 128px" src="https://confluence.external-share.com/content/6ff650c8-61d3-4b35-872d-190e97a94ddc/media/VkFIa3A3VEpZUm50TVpiMy1sSi1VQ3UwRE9fOXJzWktkdnJ6MnE2LWZ4MD0uNmZmNjUwYzgtNjFkMy00YjM1LTg3MmQtMTkwZTk3YTk0ZGRjLmF0dGFjaG1lbnRzLjY1NTM3NzM=/company_logo.png"> My Company Name
</header>

// CSS
body {
  background-image: linear-gradient(160deg, rgb(0, 147, 233) 0%, rgb(128, 208, 199) 100%);
  justify-content: center;
}

section.info {
  margin: 0px;
  margin-top: 20px;
}

footer {
  flex-grow: 1;
  display: flex;
  align-items: end;
}