a {
    color: #A0A0A0;
    font-size: 20px;
    text-align: center;
    align-self: center;
}

.blank_x {
    width: 50%;
}

.btn_yellow {
    background-color: #ffff00;
    box-shadow: 0px 4px 4px #00000040;
    color: #A0A0A0;
    font-size: 16px;
    width: 300px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn_yellow:hover {
    color: #A0A0A0;
}

.arrow_btn {
    position: relative;
    display: inline-block;
    padding: 10px;
    transform: rotate(45deg);
}

.arrow_btn::before {
  content: '';
  width: 10px;
  height: 10px;
  border-top: solid 2px #A0A0A0;
  border-right: solid 2px #A0A0A0;
  position: absolute;
  left: 40px;
  top: -30px;
}