.button_base {
    margin: 0;
    border: 0;
    font-size: 18px;
    position: relative;
    top: 50%;
    left: 50%;
    margin-top: -25px;
    margin-left: -100px;
    width: 200px;
    height: 50px;
    text-align: center;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-user-select: none;
    cursor: default;
}

.button_base:hover {
    cursor: pointer;
}

/* ### ### ### 03 */
.b03_skewed_slide_in {
    overflow: hidden;
    border: #e83929 solid 1px;
    margin-top: 30px;
    margin-bottom: 30px;
}

.b03_skewed_slide_in div {
    position: absolute;
    text-align: center;
    width: 100%;
    height: 50px;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    padding: 10px;
    padding-top: 13px;
}

.b03_skewed_slide_in div:nth-child(1) {
    color: #e83929;
    background-color: #ffffff;
}

.b03_skewed_slide_in div:nth-child(2) {
    background-color: #e83929;
    width: 230px;
    transition: all 0.2s ease;
    -webkit-transition: all 0.2s ease;
    -moz-transition: all 0.2s ease;
    transform: translate(-250px, 0px) skewX(-30deg);
    -webkit-transform: translate(-250px, 0px) skewX(-30deg);
    -moz-transform: translate(-250px, 0px) skewX(-30deg);
}

.b03_skewed_slide_in div:nth-child(3) {
    color: #ffffff;
    left: -200px;
    transition: left 0.2s ease;
    -webkit-transition: left 0.2s ease;
    -moz-transition: left 0.2s ease;
}

.b03_skewed_slide_in:hover div:nth-child(2) {
    transition: all 0.5s ease;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    transform: translate(-15px, 0px) skewX(-30deg);
    -webkit-transform: translate(-15px, 0px) skewX(-30deg);
    -moz-transform: translate(-15px, 0px) skewX(-30deg);
}

.b03_skewed_slide_in:hover div:nth-child(3) {
    left: 0px;
    transition: left 0.3e83929e839290004s ease;
    -webkit-transition: left 0.3e83929e839290004s ease;
    -moz-transition: left 0.3e83929e839290004s ease;
}