Semantic-Org/Semantic-UI

/*******************************
           Overrides
*******************************/

.ui.form input[type="text"],
.ui.form input[type="email"],
.ui.form input[type="date"],
.ui.form input[type="password"],
.ui.form input[type="number"],
.ui.form input[type="url"],
.ui.form input[type="tel"] {
  border-bottom: 1px solid #DDDDDD;
}

.ui.form .selection.dropdown {
  border: none;
  box-shadow: none !important;
  border-bottom: 1px solid #DDDDDD;
  border-radius: 0em !important;
}
.ui.form .selection.dropdown > .menu {
  border-top-width: 1px !important;
  border-radius: @defaultBorderRadius !important;
}

.ui.form .ui.icon.input > .icon {
  width: 1em;
}