Clean up form styles a bit, style batch button

app/styles/components/_add-contributor.scss

@@ -1,7 +1,6 @@
 section#add-contributor, section#add-proposal {
 
   form {
-
     p {
       margin-bottom: 1rem;
 
@@ -14,81 +13,6 @@ section#add-contributor, section#add-proposal {
         }
       }
     }
-
-    input[type=text], select {
-      width: 100%;
-      padding: 1rem;
-      border: none;
-      border-bottom: 1px solid rgba(255,255,255,0.2);
-      background-color: rgba(22, 21, 40, 0.3);
-      color: #fff;
-      font-size: 1.2rem;
-      &:focus, &.valid {
-        background-color: rgba(22, 21, 40, 0.6);
-      }
-      @include placeholder {
-        color: rgba(238, 238, 238, 0.5);
-      }
-    }
-
-    select {
-      -webkit-appearance: none;
-      -moz-appearance: none;
-      appearance: none;
-      border-radius: 0;
-      background-color: rgba(22, 21, 40, 0.6);
-      background-image:
-        linear-gradient(45deg, transparent 50%, gray 50%),
-        linear-gradient(135deg, gray 50%, transparent 50%);
-      background-position:
-        calc(100% - 1.5rem) calc(1rem + 0.5rem),
-        calc(100% - 1rem) calc(1rem + 0.5rem);
-      background-size:
-        0.5rem 0.5rem,
-        0.5rem 0.5rem;
-      background-repeat: no-repeat;
-
-      &:invalid {
-        color: rgba(238, 238, 238, 0.5);
-      }
-    }
-
-    input[type=submit] {
-      padding: 0.6rem 2rem;
-      &:disabled {
-        background-color: transparent;
-      }
-    }
-
-    input[type=checkbox] {
-      display: none;
-    }
-
-    label.checkbox {
-      line-height: 3.2rem;
-      font-size: 1.2rem;
-      &::before {
-        display: inline-block;
-        margin-right: 0.8rem;
-        height: 3.2rem;
-        width: 3.2rem;
-        font-size: 2rem;
-        background-color: rgba(22, 21, 40, 0.3);
-        border-bottom: 1px solid rgba(255,255,255,0.2);
-        text-align: center;
-        vertical-align: middle;
-        content: '✓';
-        color: rgba(255,255,255,0.2);
-      }
-    }
-
-    input[type=checkbox]:checked + label.checkbox {
-      &::before {
-        background-color: rgba(22, 21, 40, 0.6);
-        color: #fff;
-      }
-    }
-
   }
 
 }