#trial .head-list li a{
  width: 100%;
    background: #98639b;
    color: #fff;
    font-size: 16px;
    padding: 15px;
    position: relative;
    -webkit-transition: 0.2s;
    transition: 0.2s;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex
;
    -webkit-flex-wrap: nowrap;
    -ms-flex-wrap: nowrap;
    flex-wrap: nowrap;
    -webkit-box-pack: center;
    -ms-flex-pack: justify;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
}

#trial .head-list li a:before {
    display: block;
    content: "";
    border: solid 1px;
    position: absolute;
    top: 5px;
    left: 5px;
    width: calc(100% - 10px);
    height: calc(100% - 10px);
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

#trial .head-list li a:after {
    display: block;
    content: "\f0da";
    font-family: fontawesome;
    margin-left: 10px;
}

@media screen and (max-width:599px) {
 #trial .head-list li{
        width: 80%;
        margin: 2% 5% 2% 3%;
        max-width: none;
        margin-right: auto;
        margin-left: auto;
 }
}