* {
  padding: 0;
  margin: 0;
  border: 0;
  box-sizing: border-box;
  list-style: none;
  font-family: 'Open Sans',sans-serif, arial, helvetica;
}


html{
  background-color: gray;
}

body{
  width: 360px;
  min-height: 640px;
  background-color: #d9d6d6;
  color: #424242;
}

.cont-bar{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: row nowrap;
      flex-flow: row nowrap;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 360px;
  height: 3rem;
  background-color: #efefef;
  color: #424242;
  padding: 0 1rem;
}

.header-start a{
  border-right: 1px solid lightgray;
  padding-right: 0.5rem;
}

header i{
color: #3299bb;
font-weight: 600;
}

header h1{
  font-size: 1rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.header-start{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: row nowrap;
      flex-flow: row nowrap;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  -ms-flex-line-pack: center;
      align-content: center;
}

.cont-chat{
  margin: 1rem 2rem;
}

.burbuja{
  padding: 0.5rem;
  margin-bottom: 1rem;
  background-color: #ffffff;
  border-radius: 6px;
  position: relative;
  box-shadow: 1px 1px 5px 0px rgba(153,153,153,1);
}

.tail{
  display: block;
  position: absolute;
  bottom: -0.2rem;
  left: -1.3rem;
}

.usuario{
font-size: 0.8rem;
font-weight: 600;
margin-bottom: 0.3rem;
}

.mensaje{
  font-size: 0.8rem;
  margin-bottom: 0.5;
}

.uno{
  color: coral;
}

.dos{
  color: cadetblue;
}

.tres {
  color:darkmagenta;
}

.fecha-hora{
  font-size: 0.7rem;
  color: darkgray;
  text-align: right;
}

.cont-input{
  padding: 0 1rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: row nowrap;
      flex-flow: row nowrap;
  background-color: #efefef;
  height: 3rem;
  -ms-flex-pack:distribute;
      justify-content:space-around;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

input {
  height: 2rem;
  width: 14rem;
  border-radius: 4px;
  font-size: 0.8rem;
  border: none;
  outline: none;
}

.accion-sec{
  color: darkgray;
  margin-right: 0.3rem;
}

.boton-enviar{
  margin-left: 0.5rem;
  color: orange;
}

.cont-mas{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.mas-mensajes{
  margin: 0 1rem 1rem;
  box-shadow: 1px 1px 5px 0px rgba(153,153,153,1);
  color: #424242;
  font-size: 2rem;
  text-align: center;
  background-color: #efefef;
  height: 2.5rem;
  width: 2.5rem;
  border-radius: 100%;
  position: relative;
}

.numero-noti{
  display: block;
  width: 1.3rem;
  height: 1.3rem;
  font-size: 0.8rem;
  position:absolute;
  top: -0.6rem;
  left: -0.6rem;
  border-radius: 50%;
  background-color: coral;
  color: white;
  box-shadow: 1px 1px 5px 0px rgba(153,153,153,1);
}

footer{
  margin: 2rem 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid gray;
  font-size: 0.7rem;
  text-align: center;
}