body{
    margin: 0;
    padding: 0;
    background-image: url(novy_pozadi3.jpg);
    height: 100%;
    width: 100%;  
}

.h1{
    text-align: center;
    color: aliceblue;
    text-shadow: 3px 3px 10px aqua,
        3px 4px 13px aqua,
        3px 3px 10px blue,
        3px 5px 17px blue,
        3px 7px 14px purple;

    color: aliceblue;
    font-size: 400%;
}

.container{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
}

.btn {
    border: none;
    margin: 20px;
    padding: 24px;
    width: 220px;
    font-family:"montserrat",sans-serif;
    text-transform: uppercase;
    border-radius: 6px;
    cursor: pointer;
    background-size: 200%;
    transition: 0.6s;
}

.btn1{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn2{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn3{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn4{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn5{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn6{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn7{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn8{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn9{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn9{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn10{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn11{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn12{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn13{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn14{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn15{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn16{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn17{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn18{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn19{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn20{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn21{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn22{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn23{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn24{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn25{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}

.btn26{
    background-image: linear-gradient(to left,#12CBC4,#0652DD,#12CBC4);
}
.btn:hover{
    background-position: right;
}