*{
  margin: 0;
  padding: 0;
}

#app{
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  display: flex;
}

.w100{
  width: 100%;
}
.ml15{
  margin-left: 15px;
}
.mr15{
  margin-right: 15px;
}
.flex{
  display: flex;
  align-items: center;
}

/* left */
.left{
  height: 100%;
  width: 100%;
  position: relative;
}

/* right */
.right{
  width: 350px;
  flex-shrink: 0;
  height: calc(100% - 20px);
  border-left: 1px solid #ccc;
  padding: 10px 20px;
  background: #f2f2f2;
  overflow-y: auto;
  margin: 0 auto;
  transition: all 0.3s;
}

.logo-img {
  width: 200px;
  height: 200px;
  border: 1px solid #ccc;
  border-radius: 10px;
  background: #ffffff;
}

.logo-upload{
  width: 200px;
  height: 200px;
  border: 1px solid #ccc;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  font-size: 30px;
}

.show-hide{
  position: absolute;
  right: 0px;
  top: 50%;
  transform: translate(+50%,-50%);
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  border: 1px solid #ccc;
  background: #f2f2f2;
  cursor: pointer;
}