.accordion-container {
  position: relative;

  border-top: none;
  outline: 0;
  cursor: pointer
}

.accordion-container .accordion-title {
  display: block;
  position: relative;
  margin: 0;
  padding:1em;
  font-size:15px;
  font-weight:600;
  color: #000;
  background: #fff;
  cursor: pointer;
border:1px solid #000;
border-radius:4px;
box-shadow: 1px 1px 0px 0 rgba(60, 194, 235,0.6);
transition:all 0.3s;
}

.accordion-container .accordion-title:hover,
.accordion-container .accordion-title:active,
.accordion-container .content-entry.open .accordion-title {
  background-color: #f2f2f2;
  color:#000;
}

.accordion-container .accordion-title:hover i:before,
.accordion-container .accordion-title:hover i:active,
.accordion-container .content-entry.open i {
  color:#000;
}

.accordion-title{
  position: relative;
}

.accordion-title:after {
  content: "";
  position: absolute;
  right: 25px;
  top: 38%;
  transition: all 0.2s ease-in-out;
  display: block;
  width: 8px;
  height: 8px;
  border-top: solid 2px #000;
  border-right: solid 2px #000;
  -webkit-transform: rotate(135deg);
  transform: rotate(135deg);
}

.accordion-title.open:after {
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  top: 45%;
}

.accordion-content {
  display: none;
}

/* CSS for CodePen */
.accordion-container {
  width: 900px;
  margin:30px auto 0;
}


/* 640px
------------------------------------------------------------*/
@media only screen and (max-width: 640px){
.accordion-container {
  width: 90%;
  margin:30px auto 0;
}
}