#wrapper_bu{position:absolute;top:150px;width:100%;height:100%;background-color:#ddd}.txt_Center{margin:50% 0 0 20%}.txt_h1{font-size:2em}.holder_bu{cursor:pointer}.holder_bu_awayL1{top:30%;left:10%;height:40%;background-image:url(images/img-01.webp)}.holder_bu_awayL1,.holder_bu_awayL2{position:absolute;width:10%;transition:width 1s,height 1s,top 1s,left 1s}.holder_bu_awayL2{top:35%;left:0;height:30%;background-image:url(images/img-02.webp)}.holder_bu_center{position:absolute;top:5%;left:20%;width:60%;height:90%;background-image:url(images/img-03.webp);transition:width 1s,height 1s,top 1s,left 1s}.holder_bu_awayR1{position:absolute;top:30%;left:80%;width:10%;height:40%;background-image:url(images/img-04.webp);transition:width 1s,height 1s,top 1s,left 1s}.holder_bu_awayR2{position:absolute;top:35%;left:90%;width:10%;height:30%;background-color:rgba(0,0,50,.5);-webkit-transition:width 1s,height 1s,top 1s,left 1s;-moz-transition:width 1s,height 1s,top 1s,left 1s;-o-transition:width 1s,height 1s,top 1s,left 1s;-ms-transition:width 1s,height 1s,top 1s,left 1s;transition:width 1s,height 1s,top 1s,left 1s}