.acc { width: 100%; }
.acc .choice {
   display: grid;
   grid-template-areas: "name action"
                        "panel panel";

}

.acc label:nth-child(odd) { grid-area: name;}
.acc label:nth-child(even) { grid-area: action;}
.acc .panel { grid-area: panel; }
.acc input[name="ac"] { display:none }

.acc .panel {
  margin: 0;
  height: 0;
  overflow:hidden;
  margin-top: 10px;
  line-height: 22px;
  padding: 0 0rem;
  box-sizing: border-box;
  transition: 0.5s;
}

.acc .panel p { margin-top:10px }

.acc input.open:checked~.panel {
  height: auto;
  padding-left: 0px;
  transition: 0.5s;
}

.acc label {
  cursor: pointer;
  padding: 20px 0px 0px 0px;
  width: 100%;
  font-weight: 400;
  font-size: 1.375em;
  font-family: Roboto, sans-serif;
  box-sizing: border-box;
  z-index: 100;
  color:#393939;
} 


.acc input.open:checked ~ label:nth-child(odd)::after { content: "";}
.acc input.open:checked ~ label.close::after { content: "∧ "; font-size: 1em; }