#app,
html,
body{
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

p{
    padding: 0;
    margin: 0;
}

textarea{
    background-color: transparent;
    border: none;
    outline: none;
    resize:none;
}

button{
    padding: 0;
    margin: 0;
    background-color: transparent;
    border: none;
    outline: none;
    resize:none;
}

.content{
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    overflow: hidden;
    background-color: rgba(0,0,0,0);
}

.contv{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    -webkit-transform: translate(-50%,-50%);
    -moz-transform: translate(-50%,-50%);
    -ms-transform: translate(-50%,-50%);
    -o-transform: translate(-50%,-50%);
    background-color: #fff;
}