/*button*/
.button-container{
    width: 100px;
    height: 100px;
    margin:20px auto 20px auto;
}

.btn{
    background-size: 100%;
    background-repeat: no-repeat;
    width: 100%;
    color: lightcoral;
    font-family: Optima;
    font-size: 22px;
    font-weight: bold;
}
.btn-art , .btn-wiki , .btn-parts , .btn-hp , .btn-model {
    border: outset 8px #99CECF;
    height: 100%;
}

.btn-art:focus, .btn-wiki:focus , .btn-parts:focus , .btn-hp:focus , .btn-model:focus {
    border: none;
}
.btn-art{
    background-image: url("https://static.igem.wiki/teams/4195/wiki/web-picture/partnership/b1.png");
}
.btn-wiki{
    background-image: url("https://static.igem.wiki/teams/4195/wiki/web-picture/partnership/wiki.png");
}
.btn-parts{
    background-image: url("https://static.igem.wiki/teams/4195/wiki/web-picture/partnership/b2.png");
}
.btn-hp{
    background-image: url("https://static.igem.wiki/teams/4195/wiki/web-picture/partnership/b4.png");
}
.btn-model{
    background-image: url("https://static.igem.wiki/teams/4195/wiki/web-picture/partnership/model.png");
}

/*cloud*/
.cloud{
    background: whitesmoke;
    border-radius: 50%;
    box-shadow: whitesmoke 65px -15px 0 -4px,   /*阴影1*/
    whitesmoke 25px -25px,          /*阴影2*/
    whitesmoke 30px 10px,           /*阴影3*/
    whitesmoke 60px 15px 0 -10px,   /*阴影4*/
    whitesmoke 85px 5px 0 -5px;     /*阴影5*/
    height: 50px;
    width: 50px;
    margin-left: -80px;
    padding: 0px 50px 60px 30px;
    position: relative;
}

.cloud-list {
    width: 100%;
    height: 150px;
    padding: 10px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cloud .button-container .btn:hover{
    color: brown;
}

/*dialogue bubble:*/
.bubble {
    width: 60%;
    height: auto;
    border-radius: 10px;
    background-color: #FFDFBD;
    position: relative;
    margin-left: 20px;
    padding: 15px;
    color: chocolate;
    text-align: justify;
}
.bubble::before {
    position: absolute;
    top: 40px;
    left: -20px;
    content: '';
    width: 0;
    height: 0;
    border-right: 10px solid #FFDFBD;
    border-bottom: 10px solid transparent;
    border-left: 10px solid transparent;
    border-top: 10px solid transparent;
}

.bubble-1 {
    width: 60%;
    height: auto;
    border-radius: 10px;
    background-color: lightblue;
    color: steelblue;
    position: relative;
    margin-left: 20%;
    margin-right: 5%;
    margin-top: 5%;
    padding: 15px;
    text-align: justify;
}
.bubble-1::before {
    position: absolute;
    top: 30px;
    right: -20px;
    content: '';
    width: 0;
    height: 0;
    border-right: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid lightblue;
    border-top: 10px solid transparent;
}

/*wrapper*/
.our-pic{
    width: 15%;
}

.dialog-pic{
    max-width: 100%;
    height: auto;
    z-index:10;
    margin-left: -25px;
    margin-bottom: -40px;
}

.dialog-pic1{
    max-width: 100%;
    height: auto;
    z-index:10;
    margin-bottom: -40px;
}
.cug{
    display: flex;
    text-align: right;
    margin-bottom: 35px;
}
.xmu{
    display: flex;
}

.insert-pic img {
    width: 80%;
    margin: 40px 10px 10px 10%;
}

.column{
    text-align: center;
}

.cloud .button-container {
    margin: 0px auto 20px auto;
}