.bg-nav {background-color: #dfdfe4;}.bg-footer {background-color: #3A4753;}body {display: flex;flex-direction: column;min-height: 100vh;}main {flex: 1;}.links-footer li a {text-decoration: none;color: #000;}.links-footer li {list-style: square;}.bg-form {background-color: #3a4753;}#uploadForm,#imagePreview {width: 350;margin: 0 auto;}img {max-width: 350px;height: 0 auto;max-height: 300px;}.subrayado-centrado {position: relative;display: inline-block;color: #0EA2BD;text-decoration: none;cursor: pointer;}.subrayado-centrado::after {content: '';position: absolute;bottom: 0;left: 50%;width: 0;height: 2px;background-color: currentColor;transition: width 0.4s ease, left 0.4s ease;}.subrayado-centrado:hover::after {width: 100%;left: 0;}.mes {display: inline-block;margin: 20px;padding: 10px;width: auto;height: auto;content: center;}.title-calendar{background-color: #3a4753;color: #fff;padding: 5px;}.bg-sub-title {background-color: #dfdfe4;}