app/assets/stylesheets/observations.scss
div.valid-tooltip.temperature-tooltip {
display: block;
left: 130px;
top: -35px;
}
div.invalid-tooltip.temperature-tooltip {
display: block;
left: 130px;
top: -80px;
}
th.fixed-width-date {
min-width: 150px;
}
table.temperatures td {
padding: 0.25rem;
vertical-align: middle;
}