*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Roboto', sans-serif;
}
.contenedor{
    width: 90%;
    max-width: 1500px;
    margin: auto;
}
.bg_animate{
    width: 100%;
    height: 100vh;
    background: linear-gradient(to right , rgb(110, 110, 210),rgb(28, 100, 131));
    overflow: hidden;
}
.header-nav{
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
}
.header-nav .contenedor{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}
.header-nav h1{
    color: #fff;
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-size: 40px;
    
}
.header-nav nav a{
    color: #fff;
    text-decoration: none;
    margin-right: 10px;
    font-size: 25px;
    background: rgb(11, 11, 173);
    padding: 5px;
}
.banner{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
h2{
    font-size: 60px;
    font-family: 'Orelega One', cursive;
}
.banner_tittle h2{
    color: #fff;
    font-size: 60px;
    font-weight: 800;
    margin-bottom: 20px;
    
}
.banner_title .llamanos{
    color: #fff;
    font-family: 'Orelega One', cursive;
    font-size: 35px;
    text-decoration: none;
    display: inline-block;
    background: rgb(42, 42, 100);
    padding: 10px;
    margin-top: 10px;
}
.banner_img{
    animation: movimiento 5.5s linear infinite;

}
.banner_img img{
width: 400px;
display: block;
margin-right: 200px;
}
/* burbujas */
.burbuja{
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #fff;
    opacity: .3;

    position: absolute;
    bottom: -150;
    left: 5%;

    animation: burbujas 3s linear infinite;
}
.burbuja:nth-child(1){
    width: 80px;
    height: 80px;
    left: 5%;
    animation-duration: 3s;
    animation-delay: 3s;
    background: rgb(236, 57, 57);
}
.burbuja:nth-child(2){
    width: 100px;
    height: 100px;
    left: 35%;
    animation-duration: 3s;
    animation-delay: 5s;
    background: yellow;
}
.burbuja:nth-child(3){
    width: 20px;
    height: 20px;
    left: 15%;
    animation-duration: 1.5s;
    animation-delay: 7s;
    background: aqua;
}
.burbuja:nth-child(4){
    width: 50px;
    height: 50px;
    left: 75%;
    animation-duration: 6s;
    animation-delay: 3s;
    background: mediumspringgreen;
}
.burbuja:nth-child(5){
    width: 70px;
    height: 70px;
    left: 65%;
    animation-duration: 3s;
    animation-delay: 3s;
    background: pink;
}
.burbuja:nth-child(6){
    width: 80px;
    height: 80px;
    left: 70%;
    animation-duration: 5s;
    animation-delay: 2s;
    background: orange;
}
.burbuja:nth-child(7){
    width: 80px;
    height: 80px;
    left: 85%;
    animation-duration: 5s;
    animation-delay: 2s;
    background: purple;
}

@keyframes burbujas{
    0%{
        bottom: 0;
        opacity: 0;
    }
    30%{
        transform: translateX(30px);
    }
    50%{
        opacity: .4;
    }
    100%{
        bottom: 100vh;
        opacity: 0;
    }
}
@keyframes movimiento{
    0%{
        transform: translateY(0);
    }
    50%{
        transform: translateY(100px);
    }
    100%{
        transform: translateY(0);
    }
}