html {min-height: 1vh;}
body {margin: 0; padding: 0; font-family: sans-serif; font-size: 16px;}
#errormessage {padding: 3em; background: #eee;}
.body-section {margin: 2em 0;}

/* flex */

.flex-container {display: flex;}
.flex-container.flex-row {flex-direction: row;}
.flex-container.flex-column {flex-direction: column;}
.flex-container.flex-justify-center {justify-content: center;}
.flex-item.flex-auto {flex: auto;}
.flex-item.flex-initial {flex: initial;}
.flex-item.flex-none {flex: none;}