.background-phone{animation:gradient 15s ease infinite;background:linear-gradient(-45deg,#50aa4d,#009a68,#00968e,#00a26f);background-size:400% 400%}@keyframes gradient{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}@media screen and (max-width:768px){.question-car{display:none}}.question-icon{bottom:70%;position:absolute;z-index:0}